[rb6667]

Hello all, My 94 cavalier is setting a code that I can not get out of the system. 3.1 eng. All the auto parts stores have code readers, but they start at 1995/2006. The Haynes manual says you can jump a wire from the ground to the power, and the check engine light will tell you what code is being set. The manual does not say what leads are power or ground.

The plug under the dash has only 4 wires going to it: Orange, White, Black, Brown. I tried all combinations to find out which one was power, and ground. No luck. Any thoughts?

Thanks in advance,

RB6667

 

[JimM]

look here, schrol down to "paper clip test"
http://tunertools.com/vendorinfo/OBDdiagnostics_page2.asp

 

[Mike]

You probably can't as you likely have the OBD 1.5.
Click on the link for more info.

Accessing Trouble Codes

* Turn ignition switch to OFF position
* Locate Data Link Connector (DLC), see image below.
# Jumper the A&B terminals(a paper clip or a jumper wire work ok)
# Turn Ignition switch to ON position.
# Count the flashes on the "CHECK ENGINE" or "SERVICE ENGINE" light.
# FLASH, pause, FLASH, FLASH = code 12
# NOTE: Some 94 & 95 models do not have the B terminal. In which case a scanner is required.
# NOTE: Some 94 & 95 models that DO have the A & B terminals still require a scanner.

 

[furball8994]

You probably can't as you likely have the OBD 1.5.
Click on the link for more info.

Looks like he may be OK.

OBD 1.5
This hybrid system was present on the H-body cars in 94-95, W-body cars (Buick Regal,Chevrolet Lumina('95 only),Chevrolet Monte Carlo('95 only),Pontiac Grand Prix, Oldsmobile Cutlass Supreme) in 94-95, L-body (Chevrolet Beretta / Chevrolet Corsica) in 94-95, Y-body (Chevrolet Corvette) in 94-95, on the F-body (Chevrolet Camaro and Pontiac Firebird) in 95 and on the J-Body (Chevrolet Cavalier and Pontiac Sunfire) and N-Body (Buick Skylark, Oldsmobile Achieva, Pontiac Grand Am) in 95.

 

[rb6667]

Great Guys!!! Thanks very much for the info. I'll see if I can get a code.

RB6667