Check Engine Light comes on

Asked by Jul 30, 2013 at 09:56 PM about the 1994 Jeep Wrangler S

Question type: Maintenance & Repair

94 Jeep 4 cylinder yj.
I get check engine light after driving a while - stays on till I shut engine off.  When I
start up again, it stays off for about 5 minutes then on again.

Mechanic says he checked everything and everything is OK.  Codes 22, 33, 55.
Recommended and replaced the following parts: MOPAR #'s: 53030189, 53030497,
and 2946079.

Troubles NOT CORRECTED only the CEL stayed off a little longer than before.  He
also recommended a fitting # 33004175 but says MOPAR doesn't make it any more
and it is not available.

Question:  Is it likely this is the cause and if it is, where can I get the part?

7 Answers

http://www.moparpartsoverstock.com/p/JEEP__/CONNECTOR-Vacuum- Hose/6719042/33004175.html

2 people found this helpful.

should be PXXX for powertrain~ 22,33,55 mean very little to me~ probably is like an O2 sensor, evaporative emissions, coolant temp failure...ambient air IAC sensor temperature sensor...could possibly have a damaged fuel pump regulator...that would not trip a code...but would make it run poopy because of a lack of fuel pressure and a vacuum leak causing high-idle and powerless performance~

1 people found this helpful.

1994....a fairly low-tech buggy...still has a distributor 4.0 Liter V6?

2 people found this helpful.
Best Answer Mark helpful

was surprised that AMC corporation supplied these motors for a lot of years~

my bad, this vehicle is an OBD-I vehicle meaning you've got to count the number of flashes then look in the book to find out what they mean~

2 people found this helpful.

Check out: http://jeep-xj.info/HowtoECUcodes.htm .... and...http://www.jeepforum.com/forum/f13/95-zj-diagnostic-codes-629996/

2 people found this helpful.

For example: 22 - ECT Sensor Voltage Too Low Or Too High (ECT = Engine Coolant Sensor) 33 - A/C Clutch Relay Circuit Open Or Shorted 55 End of code. Trouble codes finished or none recorded.

2 people found this helpful.

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