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Forum: MKIII Supra

01-31-2012, 07:02 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Engine Stopping update

Thanks for the Link, I will check out the HAC High Altitude Control values.
After extensive reading at this site www.autoship101.com (http://www.autoship101.com) I learned there is a relation with...

Forum: MKIII Supra

01-29-2012, 10:55 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

RPM cutoff... Rich condition update after road test.

Added water and the low fluid light went out. Still have not located the drip at the back of the engine, and I expect that is where the coolant leaked out.
Leaving the TPS Throttle Position Sensor...

Forum: MKIII Supra

01-29-2012, 06:08 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

TSP issues...

Thanks for the rapid reply... I have the front of the vehicle on jack stands, and this may cause the coolant to be off the sensor. I'll check it and add coolant as required.
Regarding the...

Forum: MKIII Supra

01-28-2012, 10:33 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Throttle Postion Sensor defective..

I reinstalled the exhaust header gasket and ran the engine to create codes. Started engine and allowed it to reach normal operating Temperature. RPM was still up when I pushed the accelerator pedal...

Forum: MKIII Supra

01-28-2012, 09:40 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Dash lite question. ???

I have an indicator that is on that I have not noticed before. It is extreme left on the dash beside the temp gauge. Looks like a radiator with the cap above or something similar. Can you tell me...

Forum: MKIII Supra

01-28-2012, 05:57 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

TPS Throttle Position Sensor check..

I ohm ed out the TPS. The throttle stop screw is not touching the rocker and there is about 1/16 inch of distance between the two in the completely closed position. The stop screw is seated against...

Forum: MKIII Supra

01-27-2012, 06:58 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Fuel pump relay resistor is not to spec.

The relay check OK as per the manual... Decide to check values on the fuel pump resistor.... should be 0.70 ohms. Resistance is 1.4 on the 200 scale. Thinking this may be my problem, as it will not...

Forum: MKIII Supra

01-27-2012, 06:30 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Over Rich and Dropping of at 2200 rpm.

Dropped the header just enough to ease out the gasket. Did not seem to be crushed.. Starter the car and let it warm a few minutes.
The engine did not start instantly. It required about four...

Forum: MKIII Supra

01-26-2012, 06:29 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Converter Removal

When I separate the header, a road test may not be necessary. If there is a backup, the relieved pressure may very well allow me to do Wide Open Throttle WOT test without the cut back to idle. If it...

Forum: MKIII Supra

01-26-2012, 12:54 AM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Blown Exhaust header gasket continued.

Thanks Cre for the rapid response. As you can gather, these issues have been ongoing for over 6 months.... See previous post for updates... I actually replaced the AFM module with a used unit,...

Forum: MKIII Supra

01-25-2012, 10:35 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Rpm cut back..Blown exhaust header gasket and rich condition???.

Still trying to get the supra back on line... Finally have an inside area with heat to do the work. Update. Car ran great for 120 miles then started cutting out and now will not operate above 2000....

Forum: MKIII Supra

10-19-2011, 07:53 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

Idle Control Valve ??

Car still operating rich and will not shift out of second gear and engine is being held to less than 2,000 under driving load.
Checked the Throttle Position Sensor TPS and it checks OK. Idle...

Forum: MKIII Supra

10-06-2011, 02:31 PM

Replies: 24

code 51/ quits when returning to idle

Views: 11,426

Posted By professorbob

code 51/ quits when returning to idle

1989 Turbo Targa with automatic transmission. After transmission rebuild and reinstall of engine and transmission, (See other post) the car ran great for 125 miles. Then suddendly at about 70mph...

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