power issue

Travis89Turbo · 08-27-2010, 09:33 PM

Your knock sensors need re wired check the post knock sensor rewire.... very common problem on 7m. I did mine in about 3 hrs taken my time...again I can't post link cuz im on my cell phone still....just Google it and u will find step by step instructions.... ill post link later whn i get home if needed... oh and the knock sensor code doesn't store in your ecu it only comes on after your car has been running a minute.. I used my old plugs too I didn't buy new one BTW

Travis89Turbo · 08-27-2010, 09:46 PM

I just remembered something make sure ur A/C. SWITCH IS OFF or it will give u false code. 51 specifically. If u still have it with the switch off. thwn re wire ur knock sensors

btwilson86 · 08-28-2010, 03:33 AM

Quote:

Originally Posted by Travis89Turbo

I just remembered something make sure ur A/C. SWITCH IS OFF or it will give u false code. 51 specifically. If u still have it with the switch off. thwn re wire ur knock sensors

It'll also give you a false code if you move the throttle, like revving it up... That's likely where your code 51 is from.

Also, when checking codes you do not start the engine. If it is blinking constantly with 1/4 second intervals, then there are no codes present.

Travis89Turbo, how did you gather the OP has a problem with the knock sensor/wiring when there is no knock sensor code present (code 52)?

OP, how much boost are you running? Are you referencing the stock boost gauge or an aftermarket gauge? I have not experienced it, but I agree with Travis89Turbo's first post, sounds like fuel cut

Green7mgte · 08-28-2010, 03:39 AM

lol..
you guys ..

when i first read the post I thought Fuel cut. but at 2k rpms?

did you do any sort of mods.. like shimmed the waste gate..
stock ct26 turbo starts to spool right around 2.5 depending on throttle position..
are you boosting when you experience this "lag" if so what is your guage reading.. if is peaking and not slowly climbing i would lean twords you pushing to much boost and unshimm your wastegate or turn down your boost controller..
and don't be retarded when playing with your engine..

but if thats not the case.. post what information you have.

08-27-2010, 09:33 PM	#1
Travis89Turbo 12psi boost Join Date: Jul 2010 Location: Utah Posts: 332	Your knock sensors need re wired check the post knock sensor rewire.... very common problem on 7m. I did mine in about 3 hrs taken my time...again I can't post link cuz im on my cell phone still....just Google it and u will find step by step instructions.... ill post link later whn i get home if needed... oh and the knock sensor code doesn't store in your ecu it only comes on after your car has been running a minute.. I used my old plugs too I didn't buy new one BTW __________________ 1995 Toyota Supra SE 71k miles. Master power T70 stock 2jzge 1989 Toyota Supra. 1jzgte swap 5 speed of course.. Driftmotion 60-1 single turbo kit. Cxracing FMIC. 2jz 550cc injectors... soon to come..... EMS Stinger. BC 264 cams 680cc injectors Spec stage 4 clutch and A LOT of boost!------SOLD 1999 Ford F350 diesel 2004 Jaguar XJR Supercharged If it hasnt broke you haven pushed it hard enough!!

08-27-2010, 09:46 PM	#2
Travis89Turbo 12psi boost Join Date: Jul 2010 Location: Utah Posts: 332	I just remembered something make sure ur A/C. SWITCH IS OFF or it will give u false code. 51 specifically. If u still have it with the switch off. thwn re wire ur knock sensors __________________ 1995 Toyota Supra SE 71k miles. Master power T70 stock 2jzge 1989 Toyota Supra. 1jzgte swap 5 speed of course.. Driftmotion 60-1 single turbo kit. Cxracing FMIC. 2jz 550cc injectors... soon to come..... EMS Stinger. BC 264 cams 680cc injectors Spec stage 4 clutch and A LOT of boost!------SOLD 1999 Ford F350 diesel 2004 Jaguar XJR Supercharged If it hasnt broke you haven pushed it hard enough!!

08-28-2010, 03:39 AM	#4
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	lol.. you guys .. when i first read the post I thought Fuel cut. but at 2k rpms? did you do any sort of mods.. like shimmed the waste gate.. stock ct26 turbo starts to spool right around 2.5 depending on throttle position.. are you boosting when you experience this "lag" if so what is your guage reading.. if is peaking and not slowly climbing i would lean twords you pushing to much boost and unshimm your wastegate or turn down your boost controller.. and don't be retarded when playing with your engine.. but if thats not the case.. post what information you have. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 08-28-2010 at 03:44 AM.

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