DTC P0751

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Sep 2, 2003 | 12:57 PM

White2000TA

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From: St. Louis, MO

DTC P0751

Hi guys,

I just had 3.73 gear put in on my 2000 transam on friday. I was told to take it easy on the car for about 500-1000 miles, which I have done. This morning I got a SES light with the DTC code of P0751. The PCM had 3 of these in rapid succession. This was not under much acceleration (maybe 10% TP). I looked up the code on Alldata and I get

1-2 Shift Solenoid Valve Performance.

Would this have anything to do with the work that was done on the car last week? I reset the code using autotap, and have not received the message again. Is this anything to worry about?

Thanks,

Mike

Sep 2, 2003 | 05:24 PM

Ragtop 99

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From: Bethesda, MD

Re: DTC P0751

normally those are converter slip related. I'd clear it and see if they don't go away. If you start having shift problems, then consider replacement.

Sep 2, 2003 | 10:02 PM

White2000TA

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From: St. Louis, MO

Re: DTC P0751

Well the shift from 1st to 2nd is very hard and does jerk alot. I had predator programming to increase the shift firmness and speed until friday. I removed that programming but 1-2 shiftings still seems VERY stiff. I cleared the code and it has not returned.

Sep 3, 2003 | 10:54 AM

White2000TA

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From: St. Louis, MO

Re: DTC P0751

Just so I got it right can I just replace my stock TC with a new one to solve this problem? If so which one would you guys recommend? I mainly drive this thing for street racing. I do not have drag radials and have 3.73 gears in it at this point. Engine is fairly stock, but I am installing heads/headers/cam and a LS6 intake.

Thanks

Sep 4, 2003 | 10:52 AM

White2000TA

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From: St. Louis, MO

Re: DTC P0751

Freeze Frame from the PCM when I got the DTC code. This is from today got it again....

Diagnostic trouble code P0751
Module Engine controller ($10)
Description Shift Solenoid A Performance or Stuck Off
Fuel system status bank-1 and bank-2 B1=$02,B2=$02
Calculated load value 7.84 %
Engine coolant temperature 172 °F
Short term fuel trim: bank-1 -4.69 %
Long term fuel trim: bank-1 13.3 %
Short term fuel trim: bank-2 -3.13 %
Long term fuel trim: bank-2 12.5 %
Fuel pressure 0 kPa
Manifold absolute pressure 59 kPa
Engine speed (Revolutions Per Minute) 1309 rpm
Vehicle speed sensor 36.7 mph
Mass air flow 22.7 gm/s
Throttle position 14.5 %
TCC 196
Exhaust gas recirculation valve sensor 2.29 V
Fuel tank pressure 2.06 V
Exhaust gas recirculation valve 44.7 %
Engine coolant startup temperature 27 °C
Desired idle 550 rpm
Injector pulse width cylinder 1 5.52 ms
Injector pulse width cylinder 2 5.60 ms
Desired linear exhaust gas recirculation valve position 43.1 %
Barometric pressure 100 kPa
Commanded air fuel ratio 2 14.6 :1
Engine run time 616 sec
Misfire current status 0
Odometer when first code set since cleared 95 km
Odometer when last code set was cleared 95 km
Freeze frame counter 0
Freeze frame pass counter 0
Freeze frame not run counter 0
Electronic throttle control indicated pedal position 0 counts
Electronic throttle control indicated throttle position 0 %
Percent desired throttle position 0 %
Percent pedal rotation 0 %
Trans output speed 1869 rpm
Current gear 4

Thanks,

Mike