How can I fix this problem? I am getting a PO 172 Fuel Trim System Rich Bank 1 and PO 175 Fuel Trim System Rich Bank 2. Keeps setting off SES Light. If I clear the code while its idling it comes right back. Also RFA 1096--1064--1016. Loss of Communication with (respectively) IPC, BCM, PCM.

Any Ideas? Anybody?

Thanks! :seeya

 

This is whai I got for U1064 I am going to replace the TAC as soon as someone tells me where it is! Mine were all "H" codes

REDUCED ENG. POW. MESSAGE ALONG W/ PARTIC. PWRTRAIN #87-65-16
SUBJECT: REDUCED ENGINE POWER MESSAGE ALONG WITH PARTICULAR POWERTRAIN TROUBLE CODES (INSTALL NEW TAC-MODULE IF STRATEGY IN SERVICE MANUAL FAILS)
MODELS: 1997-98 CHEVROLET CORVETTE WITH 5.7L V8 ENGINE (VIN G - RPO LS1)

CONDITION #1: INTERMITTENT REDUCED ENGINE POWER EVENT, ACCOMPANIED BY P-1516, OR P1518 TROUBLE CODES.

IF A SITUATION ARISES WHERE A P-1516 TROUBLE CODE IS ACCOMPANIED BY A

P-1120 AND/OR P-1220 TROUBLE CODE, THIS SERVICE BULLETIN DOES NOT ----------------------------------------------------------------- APPLY. IN THESE CASES THE TECHNICIAN MUST USE THE NORMAL STRATEGY ------------------------------------------------------------------ BASED DIAGNOSTIC. -----------------

CONDITION #2: INTERMITTENT REDUCED ENGINE POWER ACCOMPANIED BY TROUBLE CODE P-1125 AND ANY OF THE FOLLOWING TROUBLE CODES:

P-1276 P-1281 P-1286

CAUSE:

CONDITION MAY BE DUE TO DIAGNOSTIC SOFTWARE AND CALIBRATION IN THE TAC-MODULE WERE NOT OPTIMALLY UTILIZED.

CORRECTION:

IF THE ABOVE CONDITIONS CANNOT BE CORRECTED USING THE NORMAL STRATEGY BASED DIAGNOSTICS LISTED IN THE SERVICE MANUAL, INSTALL THE NEW TAC- MODULE LISTED BELOW.

PART INFORMATION:

NEW TAC-MODULE PART # 25319443

PARTS ARE EXPECTED TO BE AVAILABLE ON APRIL 6, 1998 FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION: J-5582 LABOR TIME: 0.5 HR


[Modified by devo, 6:03 PM 4/20/2004]


[Modified by devo, 6:04 PM 4/20/2004]

 

Sorry about your TAC Problem but that is not the trouble I am having. I have no noticeable problems with driveabilty. I am thinking it might be O2 Sensors but I want to be sure before I change them.

 

Disregard the U1096, 1016, and 1016, these do not mean a thing. There was a bulletin published that addressed these codes, when displayed at once in older C5s. It is a programming glitch.