OBD on 1994 WJ Limited 5.2L V8
#1
Junior Member
Thread Starter
OBD on 1994 WJ Limited 5.2L V8
Is there a diagnostic port on this Jeep? If there is, I can't find it. I search this forum and found a drawing suggesting it was under the dash above the brake pedal. I can confirm it is not. Is it to old for ODB? Does anyone know what would make the check engine light come on after a few miles of driving? Checked all fluids and it is not getting hot. Oil pressure gauge reads normal. Gas cap is tight. Trying to figure out where to start trouble shooting. Any suggestions?
#2
CF Veteran
There is a sequince you have to follow to get the check engine light to flash the codes on an obd1 jeep.
http://www.fixjeeps.com/jeep-check-engine-codes.html
http://www.fixjeeps.com/jeep-check-engine-codes.html
#3
Senior Member
The 94 is a ZJ, not a WJ.
The 94 is OBD1.
It has three diagnostic connectors.
The engine one is next to the PCM, under the hood on the passenger side.
The brake one is above the gas pedal.
The airbag one is on the hump by the passenger seat.
The 94 is OBD1.
It has three diagnostic connectors.
The engine one is next to the PCM, under the hood on the passenger side.
The brake one is above the gas pedal.
The airbag one is on the hump by the passenger seat.
#4
Junior Member
Thread Starter
There is a sequince you have to follow to get the check engine light to flash the codes on an obd1 jeep.
http://www.fixjeeps.com/jeep-check-engine-codes.html
http://www.fixjeeps.com/jeep-check-engine-codes.html
Excellent resource, Thanks for the help.
#5
Junior Member
Thread Starter
Thanks for correcting me. ZJ, Got it. I assume the cheap OBD II scanner I have will not work with these diagnostic connectors. Do you think something like this would work?
https://www.ebay.com/p/for-CHRYSLER-...d=112482461513
#6
Senior Member
The listing says not good for 1995 Grand Cherokee. Your 1994 is identical to the 1995.
A DRB II tool is the way to read codes on your vehicle. (Note, the Jeep / Eagle adapter on the right is not required.)
A DRB II tool is the way to read codes on your vehicle. (Note, the Jeep / Eagle adapter on the right is not required.)
#7
Senior Member
Four DRB II parts make a complete system for your vehicle.
Those are the DRB II, the module, the interior cable (top center) and the engine cable (bottom center in image).
Those are the DRB II, the module, the interior cable (top center) and the engine cable (bottom center in image).
Thread
Thread Starter
Forum
Replies
Last Post
jeepaholic
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
08-23-2012 09:46 PM
XJD4PEH
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
11-22-2011 04:15 PM
dtarver
Cherokee Chat
1
06-14-2011 07:51 AM
sfutral1
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
02-27-2009 09:40 AM
Merlinmagic07
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
01-20-2009 10:37 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)