Multiple problems 7M-GE - Page 2

Piggy808 · 03-01-2011, 01:46 AM

thanks for info above! Just substituted lucas cleaner with the MCC aparently cant buy this outside of stealership.

I get code 51 once every other time i run the car...seems to me like the connector looks loose...The only code i get is 51...til i wiggle the connector around and it goes away...will this cause significant powerloss and timing problems? I also noticed I have the turbo tps on my NA. 1987 7mge.

I checked the ignition timing and the mechanical timing and all of it looks good, marks match up, etc. When i first start the car the car runs great...idles fine in diagnostic mode...then suddenly idle will drop and my timing jumps around the 10 degree mark a little bit ( i got my gun out). Should i go get a NA tps? Its all stock except I slapped on a ponteza catback. I also took off the exhaust header to see if there was carbon build up somewhere...looks pretty darn clean. Car bogs and makes me cry when a civic rips past me on the freeway. Installing new magnaflow cat as of right now...damn rust sucks.

cre · 03-01-2011, 02:36 AM

Newer Civics have no problem keeping up with the 7M-GE.... I mean 3500 lbs and only 140 to 160 HP at the wheels? C'mon....

Lucas is garbage, if you're going to run an in-tank fuel and chamber cleaner get something good: Techron, 44K, Redline SI-1.

And if I hear of anyone here ever using Lucas oil additives I'm going to BAN THEM!

Check your intake plumbing for leaks or cracks, replace the vacuum tubing, test the AFM. You can try running with the TPS unplugged and see if it drives better; If it does, replace it.

Piggy808 · 03-01-2011, 03:13 AM

ok no lucas additives

. What about the turbo tps on a NA? I got a civic myself as my daily and I know i can keep up with a NA supra...but not completely rip it up on the street...thats what my supra feels like...I know it can run faster than it is right now...bogging is making me fustrated...I also got silicone vacuum line replacements coming in...checked out the vacuum...reads 15 hg...kinda low i think.

But what i dont get...like i stated before...i was running at 15+ ignition advance...and it was running fast...but I toned it down to 10 degrees...and now its back to bogging.

cre · 03-01-2011, 11:06 PM

The TPS really doesn't matter at all which model 7M it's from as long as the inner tabs are of the same alignment as the tabs on the throttle body. There was a change in the TB on 89' and up MKIII's where the TPS' and TB's actuator tabs were changed and are offset 90? from the pre89. I think the fins/tabs on the pre89 (both GTE and GE) were horizontal and on the 89+ N/A they were vertical... I don't know if the 89+ GTE changed though. If the tabs mate right up, you're fine (there's no difference in the internals); If they're off 90? it won't work.

5? may make a small difference but not much.. if you can really feel a big shift then something else probably needs attention.

03-01-2011, 01:46 AM	#11
Piggy808 Stock Join Date: Jan 2011 Location: Hawaii Posts: 16	thanks for info above! Just substituted lucas cleaner with the MCC aparently cant buy this outside of stealership. I get code 51 once every other time i run the car...seems to me like the connector looks loose...The only code i get is 51...til i wiggle the connector around and it goes away...will this cause significant powerloss and timing problems? I also noticed I have the turbo tps on my NA. 1987 7mge. I checked the ignition timing and the mechanical timing and all of it looks good, marks match up, etc. When i first start the car the car runs great...idles fine in diagnostic mode...then suddenly idle will drop and my timing jumps around the 10 degree mark a little bit ( i got my gun out). Should i go get a NA tps? Its all stock except I slapped on a ponteza catback. I also took off the exhaust header to see if there was carbon build up somewhere...looks pretty darn clean. Car bogs and makes me cry when a civic rips past me on the freeway. Installing new magnaflow cat as of right now...damn rust sucks. Last edited by Piggy808; 03-01-2011 at 01:46 AM. Reason: typo

03-01-2011, 02:36 AM	#12
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Newer Civics have no problem keeping up with the 7M-GE.... I mean 3500 lbs and only 140 to 160 HP at the wheels? C'mon.... Lucas is garbage, if you're going to run an in-tank fuel and chamber cleaner get something good: Techron, 44K, Redline SI-1. And if I hear of anyone here ever using Lucas oil additives I'm going to BAN THEM! Check your intake plumbing for leaks or cracks, replace the vacuum tubing, test the AFM. You can try running with the TPS unplugged and see if it drives better; If it does, replace it. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

03-01-2011, 11:06 PM	#14
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The TPS really doesn't matter at all which model 7M it's from as long as the inner tabs are of the same alignment as the tabs on the throttle body. There was a change in the TB on 89' and up MKIII's where the TPS' and TB's actuator tabs were changed and are offset 90? from the pre89. I think the fins/tabs on the pre89 (both GTE and GE) were horizontal and on the 89+ N/A they were vertical... I don't know if the 89+ GTE changed though. If the tabs mate right up, you're fine (there's no difference in the internals); If they're off 90? it won't work. 5? may make a small difference but not much.. if you can really feel a big shift then something else probably needs attention. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 03-01-2011 at 11:09 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
problems problems problems....	86SupraMan	MKIII Supra	5	02-04-2008 04:28 PM
Starting problems and accleration problems!	alekjame22	MKIII Supra	6	03-17-2007 11:19 PM
Oil leak problems	adellicson	MKIII Supra	1	03-04-2007 10:11 PM
problems, problems, and problems	tone loc	MKIII Supra	6	09-06-2006 04:35 AM
Distributor problems?	ekoston69	MKIII Supra	1	02-02-2006 11:29 PM

03-01-2011, 03:13 AM	#13
Piggy808 Stock Join Date: Jan 2011 Location: Hawaii Posts: 16	ok no lucas additives . What about the turbo tps on a NA? I got a civic myself as my daily and I know i can keep up with a NA supra...but not completely rip it up on the street...thats what my supra feels like...I know it can run faster than it is right now...bogging is making me fustrated...I also got silicone vacuum line replacements coming in...checked out the vacuum...reads 15 hg...kinda low i think. But what i dont get...like i stated before...i was running at 15+ ignition advance...and it was running fast...but I toned it down to 10 degrees...and now its back to bogging.