P0121 Diagnostic Trouble Code Discussion for September 2010
Throttle Position Sensor Does Not Agree With MAP
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| Help Request | Posted | |
| 1998 Isuzu Rodeo S 3.2L Poor Idle Quality, Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: 4S2CM58W4W P0121: Throttle Position Sensor Signal Range/Performance. This is a well-worn Rodeo which we repaired 500 miles ago. At that time a shredded belt chopped up some wires by the radiator. Customer now states she heard a loud noise or bang then the car started running poorly: no power, stalling. And she's not kidding. it... |
September 09, 2010 | |
| 1997 Chevrolet P30 7.4L Excessive Emissions VIN: 1GBLP37J4V P0121: TP Sensor Performance. Towed in customer thought head gasket problem. Smoke out tail pipe was black. Inspected and found a spark plug wire melted. Replaced plugs and wires. Autolite double platnium. Engine still ran rich and from o2 readings and pulling plugs only on bank 2. This is... |
September 30, 2010 |
