|07-19-2013 10:27 PM|
The 'key trick' to get the codes is on-off-on-off-on (within 5 secs) but won't work on '98, '99 and 2000 models.
You can check the Throttle Position Sensor (TPS) by simply unplugging it.
If the TPS is bad, revs will drop to normal once it's unplugged.
Here's a a pic of the throttle body on my '97 showing the sensors - TPS, IAC (Idle Air Control) and MAP Sensor (Manifold Absolute Pressure).
If you remove your air-intake tube, have a look at your throttle body - if it's not as shiny as this on the inside, it could also benefit from a clean.
When my TPS went bad, I drove around for 2 months with it disconnected before I replaced it.
Only side effects were Jeep used more gas and it would struggle if I gave it too much throttle (but that may be due to the 3 speed auto).
But high revving can also indicate a vacuum leak
EDIT: If the TPS needs replacing, I'd highly recommend using a genuine Mopar part only.
I've been through 3 TPS's in the last 12 months - the 2 cheaper aftermarket TPS worked initially and bought the revs back down but didn't last long.
|07-19-2013 05:57 PM|
|07-19-2013 04:05 PM|
You dont even need to take it to a parts store to check the code. Here are the steps...
Turn key to On position. On is the position right before ignition. Then turn the key from On back to Off 5 times with the key ending on On.
If you did this within 5 seconds you should get the code reading on your odometer. It might take a couple trys to get it right but it works on the spot. Good luck!
|07-19-2013 03:44 PM|
|zaskar14||How about the IAC (Idle Air Control)|
|07-19-2013 03:09 PM|
|07-19-2013 02:00 PM|
|07-19-2013 01:45 PM|
|07-19-2013 01:39 PM|
|squanto305||excuse my ignorance. what code do i need get read?|
|07-19-2013 01:21 PM|
Get the code read and let us know what it is.
If I had to take a shot in the dark I would say TPS (throttle position sensor)
|07-19-2013 01:18 PM|
idles at 1500 rpm's
and now when i shift to second gear it sputters. dont know if all this rain here in south florida is getting into my gas tank or maybe its a bad spark plug. anyone know anything about this? now my check engine light is on.