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Forum: MKIII Supra

01-31-2012, 09:04 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

The brake fuel trim is VERY minimal and is...

The brake fuel trim is VERY minimal and is reliant on other sensor data from what I recall.... Otherwise, brake-boosting would be impossible in these cars but it's actually VERY easy.

Do keep in...

Forum: MKIII Supra

01-30-2012, 03:57 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

Here you go: ...

Here you go:

http://www.supra.co.nz/87tsrm/EFI/efi121.htm

EDIT:
1987 TRSM: http://www.supra.co.nz/87tsrm/index.htm

Forum: MKIII Supra

01-30-2012, 03:53 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

32 is a short in the HAC circuit, not related to...

32 is a short in the HAC circuit, not related to the turbo. I don't recall you Mentioning this previously. It's not shown in the 89+ TEWD because in the later model ECUs (mid89 and later) the HAC...

Forum: MKIII Supra

01-29-2012, 12:46 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

Points of clarification: It's TPS, Throttle...

Points of clarification: It's TPS, Throttle Position Sensor; The 7M-GTE is paired with a KVAFM or AFM for short, Karman Vortex Air Flow Meter. The 7M-GE uses a VAFM or Vane Air Flow Meter (again AFM...

Forum: MKIII Supra

01-29-2012, 03:58 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

The lamp you describe is the 'low coolant' light....

The lamp you describe is the 'low coolant' light. The sensor is in the reservoir... not really the best indicator if the whole system is low, but it's better than nothing.

Code 41 mean there is...

Forum: MKIII Supra

01-28-2012, 10:39 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

The engine should run fine with the TPS...

The engine should run fine with the TPS disconnected... it may have some trouble transitioning into idle and with tip in/out response. A bad TPS should have VERY little effect on the operation of the...

Forum: MKIII Supra

01-28-2012, 02:50 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

The resistor is employed at LOWER RPM and load......

The resistor is employed at LOWER RPM and load... not where you're experiencing the problems and it's not bypassed by the relay until around 4K at a medium or higher load, IIRC.... Besides, with...

Forum: MKIII Supra

01-27-2012, 08:11 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

Put the car in diagnostic mode and run it. Watch...

Put the car in diagnostic mode and run it. Watch for any codes (other than 51 which you'll set from pressing the throttle). It does sound quite a bit like limp mode. I can't think of anything...

Forum: MKIII Supra

01-26-2012, 01:51 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

It's going to be loud as hell, but pull off the...

It's going to be loud as hell, but pull off the cat and take it for a quick spin around the block.

Forum: MKIII Supra

01-25-2012, 11:10 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

A clogged cat is a possibility, especially after...

A clogged cat is a possibility, especially after a rebuild. I'd test the AFM first. You haven't sprayed the AFM out with any water or cleaners I hope. Also, if you have any error codes present you...

Forum: MKIII Supra

10-08-2011, 05:48 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,431

Posted By cre

Every condition which would cause "Limp Mode"...

Every condition which would cause "Limp Mode" should record a code in the ECU or the ECT. Code 52 is the only one that's commonly seen on these cars. The TPS and ISCV will NOT cause the car to go...

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