My cutlass did that when it had the original 260 olds motor in it. Check the intake seal. Mine would start and run, but the idle was high and wouldn't get above 20mph. At that point the car had 150k+ miles and I put in a new motor. But when I was able to get a good look at the back ofthe block I could see the intake seal along the intake and block had pushed out and was later told that it was more than likely the culprit.
Car won't go over 20 mph
- Thread starter J.Rod22
- Start date
- Status
Is the TV or kick down cable hooked up? Is your trans fluid level good? It should shift in limp mode, just run pig rich.
Are you positive you plugged all your electrical stuff back together correctly? It's really not happy with all those codes and two of them are conflicting.
Diagnostic Trouble Codes - 1988 Oldsmobile
13 Open Oxygen Sensor Circuit
14 Coolant Temperature Sensor (High Temp Indicated)
15 Coolant Temperature Sensor (Low Temp Indicated)
16 System Voltage High
21 Throttle Position Sensor (Signal Voltage High)
22 Throttle Position Sensor (Signal Voltage Low)
23 Manifold Air Temperature (MAT) Low Temp Indicated
24 Vehicle Speed Sensor (VSS) Circuit
25 Manifold Air Temperature (MAT) High Temp Indicated
26 Quad-Driver (QDM) Circuit
27 Gear Switch Diagnosis
28
29
31 Park/Neutral Switch Circuit
34 Mass Air Flow Sensor (MAF) (GM/SEC Low)
38 Brake Input Circuit
39 Torque Converter Clutch (TCC) Circuit
41 Cam Sensor Circuit
42 Electronic Spark Timing (EST) Circuit
43 Electronic Spark Control (ESC) Circuit
44 Oxygen Sensor Circuit (Lean Exhaust Indicated)
45 Oxygen Sensor Circuit (Rich Exhaust Indicated)
48 Misfire Diagnosis
51 Mem-Cal Error
63 Exhaust Gas Recirculation (EGR) Flow Check
64
65
Diagnostic Trouble Codes - 1988 Oldsmobile
13 Open Oxygen Sensor Circuit
14 Coolant Temperature Sensor (High Temp Indicated)
15 Coolant Temperature Sensor (Low Temp Indicated)
16 System Voltage High
21 Throttle Position Sensor (Signal Voltage High)
22 Throttle Position Sensor (Signal Voltage Low)
23 Manifold Air Temperature (MAT) Low Temp Indicated
24 Vehicle Speed Sensor (VSS) Circuit
25 Manifold Air Temperature (MAT) High Temp Indicated
26 Quad-Driver (QDM) Circuit
27 Gear Switch Diagnosis
28
29
31 Park/Neutral Switch Circuit
34 Mass Air Flow Sensor (MAF) (GM/SEC Low)
38 Brake Input Circuit
39 Torque Converter Clutch (TCC) Circuit
41 Cam Sensor Circuit
42 Electronic Spark Timing (EST) Circuit
43 Electronic Spark Control (ESC) Circuit
44 Oxygen Sensor Circuit (Lean Exhaust Indicated)
45 Oxygen Sensor Circuit (Rich Exhaust Indicated)
48 Misfire Diagnosis
51 Mem-Cal Error
63 Exhaust Gas Recirculation (EGR) Flow Check
64
65
- Status
Similar threads
