Toyota knock sensor bypass.
May 31, 2017 · KNOCK SENSOR BYPASS ON 1990 3.
Toyota knock sensor bypass REMOVE KNOCK (3MZ−FE ENGINE TYPE) Disconnect the 2 knock connectors. It had an aftermarket sensor in it, and it was just junk. Remove the glove box, pull the ECU connector from the knock sensors (E11 on Gen4 1MZFE) and splice the good sensor wire output onto BOTH ECU inputs, leaving the bad sensor wire floating: Apr 24, 2025 · However, in some cases, bypassing the knock sensor may become necessary, such as during specific modifications or troubleshooting processes. 4K subscribers Subscribe Quick and free fix without pulling the intake Manifold if you have an issue with one knock sensor, but still have ONE GOOD SENSORmore Audio tracks for some languages were automatically generated. Safe For Honey Apr 19, 2020 · Girlfriend’s 4Runner with the 4. Buy once, cry once. Why Toyota decided to put those sensors in the valley of the engine. It's the P0330 code for bank 2 knock sensor. The former is Jun 30, 2021 · Does anyone have the instructions for the simple knock sensor bypass in a 2nd Gen Sienna? Error code: Knock sensor one circuit low input (bank one) P0327 Jul 25, 2022 · 2003 V6 AWD 345k miles. Wrestled to get drivers and software updated since win 10 upgrade. May 31, 2017 · KNOCK SENSOR BYPASS ON 1990 3. Sep 8, 2024 · Code P0325 Toyota Description The P0325 diagnostic trouble code (DTC) for Toyota vehicles indicates a Knock Sensor Circuit Malfunction. Nov 26, 2020 · About this item Complete solution - this knock sensor kit includes two knock sensors and the wiring harness that connects them Plug-and-play installation - matches original wiring harness, requiring no cutting or splicing Quality assured - benchmarked against original components for performance and quality Excellent value - original equipment quality at significant cost savings Ensure fit - to Jul 17, 2019 · Ya, but I read on the internet (so It must be true) that relocating the knock sensor to the hook is like one of the worst things you can do to a toyota. It involves clearing off and removing both layers of the intake manifold Dec 11, 2008 · Additional Reads: Knock Sensor Workaround Xterra Owners Club: Knock sensor myth debunked North East Xterra Club :: View topic - Knock Sensor Workaround Note: I do not agree with the guy on the xterraownersclub. Then to use one of the short harnesses to do a temporary bypass using the s10 knock sensor. . The OBD code of 52 can mean that your 4Runner’s knock sensor has failed. 0 has thrown the traction control light and check engine light, when I ran the code it was indicating the knock sensor Jul 3, 2019 · P0330, P0325 -Knock Sensor Removal Camry/Lexus V6 2002-2006 awesomesocks444 25. 5-2004 Tacomas & 96-2002 4Runners Knock sensor bypass question 95. It also helps if you're driving stick and know the danger zone of knocking is narrow enough you can get around it by going quickly through it or avoiding it. If there is a way to bypass this POS do it. The former is frequently the case, and people would prefer a simpler solution because it takes at Jan 30, 2015 · YotaTech Forums Toyota SUV & Truck Tech 95. Toyota Camry V6 97-06 THIS is One of the Best Toyota Models Ever Made! Let's See How It's Doing! 2002 Lexus RX300 knock sensor relocate mod #carpart Toyota Lexus RX300 `02 w 3. I feel like I've scoured the internet for the answer and it isn't mentioned in the Chilton manual I purchased either. Busted out the dusty ELM 327 and old laptop. The rest is just being careful and paying attentionhighly suggest replacing the bypass hose as well since you are in there. Sensor is absolutely buried a Oct 31, 2022 · Toyota 4Runner Forum - Largest 4Runner Forum > Toyota 4Runner Forum > 4th Gen T4Rs > Guide: Starter, Knock sensor, SAIP replacement 2UZ-FE VVT-i Dec 7, 2007 · i have a 92 toyota 22re and i had the cel come one and it was the knock sensor. Mar 14, 2016 · This article applies to the Toyota 4Runner (1984-1995). Even though I'd rather replace what is probably the faulty harness to the knock sensor, I just don't have the time before smog check to rip the intake manifold off. INSTALL KNOCK (1MZ−FE ENGINE TYPE) Using SST, install the 2 knock s. Apr 8, 2023 · But the engine will knock if you run it on 87 octane without correctly functioning knock sensors. Jun 12, 2017 · SOURCE: 2001 Toyota Highlander will not The code and having no overdrive go hand in hand. Depending on your tuning though, you may need to bypass the knock sensor to squeeze every bit of power out of it. 5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners Mar 13, 2021 · The sensor ensures that the engine produces power without pinging. Does anyone have access to a manual or wiring diagram the provides the answer? I Dec 9, 2017 · 1998 Toyota Camry V6 1MZFE - Top End Work: Spark Plugs, Knock Sensor, Bypass Hose, etc 1mzfe bypass hose knock sensor spark plug thermostat 1 reading Jump to Latest Mar 8, 2023 · A week or so later I started getting a p0330 and p0325 code "Knock sensor 1 and knock sensor 2" code at the same time. Replaced with new oem denso sensors and oem sub harness. Lots of build threads, pictures, discussions and advice. Few have done it on lexus/toyota SUVs too. 4 Toyota Dec 9, 2005 · I'm halfway through changing my knock sensor. I was going to rectify this issue properly but i think I will just do bypass and feed Knock Jan 16, 2009 · For street usage I would lean towards yes, especially at higher RPMs. 2. If you find any broken or damaged wires, replace those first. But finding this tiny yet crucial component can Oct 5, 2013 · My 2001 Toyota Avalon just glow the check engine light 2 days ago. well i put a new one in cleared the computer and the cel still comes on. I've read the how-to's and looked at 1/2 dozen videos. Seems like the wire sucks! 2003 Chevy Tahoe 4. They get crispy and break. When I got the P0330 code on my '99 Avalon, the diagnostic section of the shop manual offered a method to tell on which side of the EC1 connector--knock sensor side or computer side--the problem exists. Where is the front bank's knock sensor wire at and what color? I erased the code to see if it would come back, it haven't. p0330 knock sensor voltage high. Remove the 2 nuts and 2 knock s. First off he did see a spike in torque at the begining. just reads both banks off one sensor. After completing the project and driving the 4-runner Jun 25, 2025 · The knock sensor is critical in monitoring engine vibrations and detecting detonation or knocking, which can lead to engine damage over time. Has anyone done it on Sienna? Or can someone help me locate knock sensor pins on ECM/ECU? Apr 10, 2018 · Doesn't this bypass the knock sensor all together? Better hope you dont get a batch of bad AM/PM gas nope. 3 liter 130k or so. After replacement it still throws codes for both knock sensors. That is the only way to do it. I don't recommend this, but there are a number of people who do a knock sensor bypass, or use a different knock sensor mounted to the outside of the heads. Mar 25, 2010 · I believe the Toyota will default on the timing advance to the standard 8-10 degree with a knock sensor fault (like when you jumper to bypass ECU to check default timing). This guide will explain the considerations and steps involved in how to bypass knock sensor, while emphasizing the importance of caution to avoid causing harm to your engine. 0 V6 Does anyone know with 100% certainty how to completely bypass/eliminate the knock sensor on one of these so the che How to get around repairing knock sensors on a 3. Dropped it off at Toyota this morning. Jul 1, 2020 · Well the day has come :( Check Engine Light and feels sluggish. Before reinstalling the bypass, remove and replace the knock sensors, torquing to 33 ft-lbs. Checked all connections Apr 27, 2012 · At this point, you can re-check knock sensor resistance to verify which sensor is bad. 00 to make they charge almost $200, then you have to remove tons of shit to get at it, it took me 4 hours of removing vacuum crap to get to it. The most common culprit is the short harness. Oct 20, 2019 · If you only get one knock sensor code : P0330 or P0325 there is a quick hack to avoid the code ruining your day. Sep 16, 2025 · Toyota 4Runner Forum - Largest 4Runner Forum Toyota 4Runner Forum 3rd gen T4Rs > Any way to bypass both knock sensors to get rid of the codes? The dreaded P0330 on a 1MZFE engine can indicate one of two things, according to the Lexus engineers: either the sensor is seriously damaged or the signal wire from the #2 knock sensor is shorting to ground owing to wear on the wiring harness trapped in the vibration and heat in between the heads. My car 2005 Camry V6 3L has 350K kms and it has been running fine even with P0330 fault for last 20K kms. Mar 25, 2022 · Hi all, hope you are doing well. Even worse than running it without oil in the engine! Mar 21, 2021 · Where can I find the harness (pics would be helpful or specific location) I want to check it’s connections I have 2003 Highlander 3. Feb 6, 2023 · Diagnosing this trouble code. The second most common cause is Dec 10, 2015 · Any ideas on how to bypass check engine light for a knock sensor?? Discussion in ' Technical Chat ' started by riverbarge, Dec 10, 2015. 0l vvt engine P0330 knock sensor bank 2 remove replace KILL ALL Yellowjackets And Wasps For 1/2 Mile. Could have cheated and did some wiring bypass 2006 Toyota Sienna 3. There may be some sort of test procedure that the engine does to test the knock sensors, no idea about that. I just got rid of the same 52 code on mine by replacing the knock sensor and harness with OEM Toyota parts. Mar 8, 2023 · A week or so later I started getting a p0330 and p0325 code "Knock sensor 1 and knock sensor 2" code at the same time. 10. Feb 4, 2020 · 2003 V6 AWD 345k miles. 2006 Sienna 3. It's purpose is to relocate 1 knock sensor and split it to bot Dec 15, 2018 · I believe the problem initially was when the Engine ran Hot and messed up the integrity of the Knock sensor harness connectors and or wiring to the Knock sensors. Install knock (1MZ-FE engine Aug 21, 2024 · The PCM isn't seeing a signal from the knock sensor. 8L Jun 4, 2016 · The Largest 4Runner Community in the World Well, in this video I spend my time trying the 1MZ hack that I stumbled across on some forums. 3L knock sensor bypassed Quick Fix Cars 257 subscribers Subscribe Sep 9, 2015 · Having knock sensor issues so my second time in I took some pics to try and make a DIY for replacing these components. Changing the knock sensor is not a quick operation, nor a task for the mind. Check the quick overview for advice and then I will explain the code in more depth, including my case study from 10+ different P0325 cases. Remove knock (3MZ-FE engine type) 11. IT SUCKS! For a simple sensor that costs Toyota $3. this was done a 2000 toyota 4runner If this video was helpful to you and if you would like to place a donation, here is my Venmo and PayPal information. The knock sensor is a crucial component in the engine management system that detects abnormal combustion or "knocking" in the engine. Oct 16, 2023 · P0325 Knock Sensor 1 Circuit Malfunction (Bank 1) means a fault with your knock sensor on the cylinder head 1. Before putting it back together I tested resistance from the sensor plugs back to the ecu plug directly and found no issue there (thought it was odd both tripped at the same time is why i did this). It resets the computer periodically momentarily something like If you are turning imports away because your techs lack the training and expertise to diagnose and repair these vehicles, then you are missing out on a signi Oct 26, 2017 · I've read about people bypassing knock sensor 2 (for P0330) by connecting ECM with signal from knock sensor 1 (splitting signal from knock sensor 1 and feeding it to the pin which takes signal from knock sensor 2). Indicates that voltage is detected high for over 1 second coming from Bank 1 knock sensor. Replacing the Knock Sensor Toyota Sienna 2005 Codes: P0328 P0333 P0330 Toyota Avalon 2000-2004. Install the new cable, snapping it into place, and routing it out to the main harness. I have a question regarding bypassing knock sensor P0330 fault. Looks like it's a full afternoon thing. knock sensor codes being thrown see picture. However, there are situations where bypassing the knock sensor might be necessary, such as troubleshooting issues, working with aftermarket engine setups, or adapting modifications for performance tuning. Jul 21, 2010 · The plugs to the knock sensor get very brittle with age and heat,,,There is a short wire harness replacementThe hardest thing is get the 10mm bolt off the rear of the intake manifold between the manifold and firewall. Has anyone done it on Sienna? Or can someone help me locate knock sensor pins on ECM/ECU? New knock sensors and wiring but I still has CEL P0327 P0332. Before dropping money on knock sensors, check the wiring. My plan is to replace the shielded wire all the way from the ECM to the injector harness. I was reading your build thread while on the trip so I knew the second I saw those lights that the knock sensor wires were done for. Clearing this code typically requires a new knock sensor. 0 I did timing belt over a year ago shortly after I noticed my sub not shifting into OD change they the 3 gears then the rpms revs high after 10/15 minutes When you have a knock sensor, check engine light code, you can use this device to reset the computer on the fly to catch overdrive. It is possible to bypass a knock sensor for troubleshooting purposes only; not as a permanent fix to your problem. Why Bypass Knock Sensor There are a few scenarios where bypassing the knock I installed new head gaskets on my Toyota 3. com about a bad knock sensor being ok and you are not missing a thing. Jan 25, 2019 · P0330 is a powertrain OBDII trouble code that has the same meaning for the Toyota Camry as it would any other vehicle. SST 09249−63010, 09816−30010 Torque: 39 N·m (398 kgf·cm, 29 ft·lbf) Connect the 2 knock s. Jul 29, 2020 · After extensive review of previous posts and the extent (and cost) of replacing the sensor, I've realized I just want to bypass this sensor by using the good signal from knock sensor 1. Original owner and geez I'm getting tired of fixing things. Sure enough, drove the truck and it felt supper sluggish and wouldn't shift into 5th. Jun 2, 2017 · 2001. I went ahead and replaced both knock sensors and the harness, checked the connections, protected them with dielectric grease, I cleared the codes and they came right back after going about a mile down the road. Those of you out there that have done the KNOCK SENSOR-NEW CABLE- NEW BYPASS HOSE have any wonderful time-saving Aug 12, 2018 · I've read about people bypassing knock sensor 2 (for P0330) by connecting ECM with signal from knock sensor 1 (splitting signal from knock sensor 1 and feeding it to the pin which takes signal from knock sensor 2). Or, maybe that the knock sensor is still good, but its pigtail or plug to the ECU has a short or broken connection. If the problem persists, replace the sensor. Remove the glove box, pull the ECU connector from the knock sensors (E11 on Gen4 1MZFE) and splice the good sensor wire output onto BOTH ECU inputs, leaving the bad sensor wire floating: May 30, 2024 · Toyota 4Runner Forum 3rd gen T4Rs > Bypassed knock sensor code P0330 and then picked up code P0115 immediately after. Tools and materials needed: Wire cutters, screwdriver (standard or Phillips)Ohm meter, if necessary; Piezo transducer, speaker wire. Oct 10, 2010 · Good advice on the opportunity to change out the coolant bypass hose. Those of you out there that have done the KNOCK SENSOR-NEW CABLE- NEW BYPASS HOSE have any wonderful time-saving Oct 16, 2020 · P0330 bypass The Lexus guys figured this one out, the dreaded P0330 means one of two things on a 1MZFE engine: the signal wire from the #2 knock sensor is shorting to ground due to wear on the wiring harness stuck in the vibration and heat in between the heads AND/OR the sensor is truly bad. 0 / 3VZE and spaced changing the knock sensor (although it had not issues prior to dis-assembly). does anyone know what else it could be? is there any way to bypass the knock sensor? Aug 18, 2025 · Ever heard a strange knocking from your Toyota engine and discovered a P0325 or P0330 code on your OBD scanner? Your knock sensor might be the culprit. Aug 7, 2025 · If you only get one knock sensor code : P0330 or P0325 there is a quick hack to avoid the code ruining your day. I may have missed a detail here May 1, 2018 · I got back home from a 10 day trip yesterday to my check engine and trac off lights on. bypassing the sensors pulls all the timing putting truck in a limp mode state. Or I would really appreciate it if you Post 2710545 -Toyota 4Runner Forums for all 4runner models ranging from 1st gen to 2011. Pins 3 & 4 of the connector are grounds for the shielding; pin 1, knock sensor bank 1 signal; pin 2, knock sensor bank 2 . They quoted me $2700!! Luckily my comprehensive Nov 25, 2018 · I need to know the resistance that the knock sensors for the 1MZ are supposed to create in ohms. I replaced both knock sensors with OEM Denso sensors, a Genuine Toyota wiring harness, a genuine Toyota Bypass hose and some new Intake and Plenum Gaskets. Apr 25, 2020 · Thank you, I did purchase a OEM Toyota knock sensor and 2 of the short harnesses as well as a 1997 S10 knock sensor for a 2. Oct 7, 2021 · If you're replacing the connector housing, you'll have to reinstall the terminals and new seals, because the Toyota housings don't come with either. By definition, it means that the vehicles ECM/PCM isn't getting the proper signal from the knock sensor. Ballenger in the US has a "kit" that supplies the housing, terminals (with spares) and seals, for the knock sensor, for a better price that Toyota sells the housings alone. hybhpadgzxqdfohffrfyxoqnxclimwvardaxciqysjfhdgymtgxxyqklhghhjhaoculeoft