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1996 GMC C1500 Suburban 5.7L MIL Lamp on, hard late upshift
fellow techs, this vehicle at idle seemingly worse cold has a wandering scan value for tps. swept snsr on scope,using snsr return and snsr grd at snsr connector, and it is clean. 5v ref good. here is my problem, with dvom at same test points at idle i see cons...
Summary posted 2/18/2001
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| VIN | 1GKEC16R7T |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Hard Late Upshift |
| Occurs | Cold, Idle, Intermittently |
Trouble Codes
| 1122 | tp ckt. intmt low voltage |
| 122 | tp snsr or app snsr 1 ckt. short |
| 338 | ckp snsr a signal high freq. |
Message Closed w/Summary
Vehicle Data
1996 GMC C1500 Suburban
| VIN | 1GKEC16R7T |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Hard Late Upshift |
| Occurs | Cold, Idle, Intermittently |
Trouble Codes
| 1122 | tp ckt. intmt low voltage |
| 122 | tp snsr or app snsr 1 ckt. short |
| 338 | ckp snsr a signal high freq. |
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