2000 jeep wrangle engine light came on. code was

bad news
those is the main /cam sensor
if fail hard, engine stalls, no spark
which engine, 4.0liters?
wrangle TJ
chapter 21 (dtc pages)
cam single dead or dropping out 1 to 10 times
it does give early warnings. (can)
check wires to it.
chapter 8d
free fsm TJ
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

first code it's P0320 Possible causes
- Faulty Ignition/Distributor engine speed sensor
- Faulty Crankshaft Position sensor
- Ignition/Distributor engine speed sensor harness is open or shorted
- Ignition/Distributor engine speed sensor circuit poor electrical connection
- Low battery charge
- Faulty Engine Control Module (ECM)


Read more: http://engine-codes.com/p0320_ford.html#ixzz3DcwddSlp
2- P0750 Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 1 valve
- Shift solenoid 1 valve harness or connectors
- Shift solenoid 1 valve circuit is open or shorted


Read more: http://engine-codes.com/p0750_ford.html#ixzz3DcwoXS73
3- P0120 Possible causes
- Faulty Throttle Position Sensor
- Throttle Position Sensor circuit is open or shorted
- Throttle Position Sensor poor electrical connection


Read more: http://engine-codes.com/p0120.html#ixzz3Dcx3VCPs
4- P0220 Possible causes
- Throttle Position Sensor (TPS) harness is open or shorted
- Throttle Position Sensor (TPS) circuit poor electrical connection
- Faulty Throttle Position Sensor (TPS)
- Fault Electric Throttle Control Actuator (or Throttle Body Motor)
- Accelerator Pedal Position Sensor (APP)


Read more: http://engine-codes.com/p0220.html#ixzz3DcxGUMl4

Hi Paula,

You didn't mention if you changed the plug wires.

You mentioned replacing the camshaft sensor. Have you checked the Crankshaft Position Sensor? Or the Mass Air Flow Sensor (may need cleaning)? Or the Throttle Position Sensor?

disconnect negative terminal of battery for 5 minutes then reconect terminal. that should reset the check engine lite.

It is most likely the TPS sensor for the P0123 code(TPS voltage out of range). If P0123 occurs again, repair. The P0162 may be a result of the P0123 failure. So repairing the P0123 may also correct the P0162 fault.


The P0162 appears to be Jeep enginr specific. The following link may be of help.

P0162 DTC For Mitsubishi Jeep

P0123 is a TPS/Pedal Position Sensor A Circuit High Input code. P0162is an 02 Sensor Circuit Malfunctoin (Bank 2 Sensor 3) problem.

The exact placement of the throttle position sensor generally is located on the side of the throttle body below the air intake tube on top of the engine.

To replace simply remove the air intake duct (usually one plastic screw), locate the sensor, disconnect wire plug in, remove the two sensor mounting screws (torx screw variety, size not remembered) and the sensor will come off. When replacing be sure to line up the throttle shaft with the proper groove inside the sensor...it should just slip in there pretty easily with a little bit of wiggling. Reinstall doing the reverse of the above.

Take's about 5 - 10 min to replace from start to finish and remember to clean the throttle body before starting this job to ensure no dirt will enter the engine. Good luck, Merry Xmass

Sensor is attached with two torx screws on the throttle body. it is easily removed and is non adjustable. Be sure you engage the throttle plate shaft properly before tightening it up if unsure what it looks like, buy the new one first..

Manufacturer Specific Codes

P1100 BARO Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1120 Accelerator Pedal Position Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1121 Accelerator Pedal Position Sensor Range/Performance Problem

P1125 Throttle Control Motor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1126 Magnetic Clutch Circuit

P1127 ETCS Actuator Power Source Circuit

P1128 Throttle Control Motor Lock

P1129 Electric Throttle Control System

P1130 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1133 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1135 Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1150 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 2)

P1153 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 2) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1155 Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)

P1200 Fuel Pump Relay Circuit

P1300 Igniter Circuit Malfunction - No. 1

P1305 Igniter Circuit Malfunction - No. 2

P1335 No Crankshaft Position Sensor Signal - Engine Running

P1349 VVT System

P1400 Sub-Throttle Position Sensor

P1401 Sub-Throttle Position Sensor Range/Performance Problem

P1405 Turbo Pressure Sensor Circuit

P1406 Turbo Pressure Sensor Range/Performance Problem

P1410 EGR Valve Position Sensor Circuit Malfunction - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1411 EGR Valve Position Sensor Circuit Range/Performance - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1500 Starter Signal Circuit

P1510 Boost Pressure Control Circuit

P1511 Boost Pressure Low

P1512 Boost Pressure High

P1520 Stop Lamp Switch Signal Malfunction

P1565 Cruise Control Main Switch Circuit

P1600 ECM BATT Malfunction

P1605 Knock Control CPU

P1630 Traction Control System

P1633 ECM

P1652 Idle Air Control Valve Control Circuit

P1656 OCV Circuit

P1658 Wastegate Valve Control Circuit

P1661 EGR Circuit

P1662 EGR Bypass Valve Control Circuit

P1700 Vehicle Speed Sensor '2' Circuit Fault

P1705 Direct Clutch Speed Circuit Fault

P1765 Linear Shift Solenoid Circuit Fault

P1780 Park/Neutral Position Switch Malfunction (Only For A/T)

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its just a sensor. you do not have to replace the entire throttle body.