check engine light

[burrellsjeep]

Kyle what Temp is it running at? When warmed up?

 

[adam greene]

its probley doin all this cause he sunk it in a mud hole and filled the engine full of water lol

 

[burrellsjeep]

I would really like the codes so I could save you throwing a bunch of unnecessary money at it. If possible a snap shot of the freeze frame data

This is the code he is getting,

P0132 (M) 1/1 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range.

I will have him get it checked again to be sure.

 

[Ron]

mike,
I know you know wiring damn well.... have you took a meter reading at idle?
Is it inside the spec range?

 

[burrellsjeep]

mike,
I know you know wiring damn well.... have you took a meter reading at idle?
Is it inside the spec range?

I have not took a reading as of yet.

Are you referring to the Input Voltage Range?

 

[wrangler00]

I put a tank of premium gas and octane booster and a can of sea foam in it. ran it for about 5 mins cut it off and let it sit for about 8 hrs. Got in the jeep this morning and drove it around for a little while and the check engine light went off all by itself. came home and cut it off. I messed around a little bit cranked it back up and let it sit and idle for about 15 mins and when i got back in the jeep the light was back on. So something i am doing is right but not good enough i havent put anymore gas in it or touched the gas since yesterdaty

 

[wrangler00]

ok i went to the store today and bought a new map sensor. Put the new sensor on and the chech engine light came back on. What is wrong with this thing

 

[burrellsjeep]

I got the stuff to make the reader for the OBD today, So I will let you know if get it together.

 

[Wwildman]

here is a little info on that code for you

The processor in the powertrain control module (PCM) shares inputs from the MAP sensor and the upstream O2 sensor circuits. A capacitor charges and discharges as the processor switches from one input to the other during normal operation. If one of the shared circuits has higher than normal voltage, the capacitor does not have time to discharge and the remaining charge discharges to the shared input causing the processor to see it higher than it actually is. A scanner will display one voltage but a DVOM may measure a different voltage at the PCM terminal for that component. This will occur only with the JTEC controllers used in the 96-03 Jeep and Dodge truck applications. The JTEC engine controller uses three 40-pin connectors. To diagnose a code for the MAP sensor with no problem found on the MAP signal, monitor the voltage on the upstream O2 sensor circuit. If the voltage goes to battery voltage, repair that problem first.
here is another place to check also
Codes P0132 and P0135. P0138 pending. Found rear O2 rubbed through at body heat shield. Shorted cicuit and blew fuse #17 under hood killing power to O2 sensor relays.