Questions & Answers for: Jeep error 94

94 Jeep Grand Cherokee check engine light and display panel it's a V8 and had been driving fine until the other day when the "Check Engine" light came on. then i noticed the following 3 things: 1.) ...

94 jeep grand cherokee v8 5.2 i got error codes 12-14-56 where can i find out what they mean 12 is usually a power disconnect, 14 is usually a map sensor 56 I'm not sure of...likely you mis-read it ...

...94 jeep cherokee 4.0 eng auto trans Error code 21 is oxygen sensor or circuit.Check the oxygen sensor first and then the circuit. The sensor is on the exhaust manifold or on the exhaust downpipe.Its ...

94/95 jeep 4 lt. Seem to have error code 12 followed by 55. Manual we have doesn't show 12 as an error code - any clues, please? 12 indicates that the battery has been disconnected recently. 55 shows ...

...94 GC ZJ body. which engine option? says you have no spark so you read the fsm. on that. on spark an fueling and the ASD relay. no gas car runs with no spark and jeep cuts fuel if no spark is ...

94 jeep ... after hooking the negative battery back up ... my flashers started flashing ... I think it is the anti theft system ... I try to start my jeep and it'll run for a sec and then shut off ...

error codes from your Jeep's computer with an first generation OBD scan tool - there may be another issue totally unrelated to the fuel pump. You do understand that a '94 is really getting pretty old,

...all computers on earth) lose of power to PCM or ground or bad power.(weak, or intermittent) Got DTC errors , post them? innova 3140 best bank for buck on 93-95 jeeps. !!! that is a low priced scan ...

...shift jeeps. if it cranks fast, and one start, does car have spark. does the scan tool show DTC errors cranking. does the ASD relay close cranking and not drop out cranking? for 5 seconds, if it ...

...(only you know what you touched) or scan it the obd1 scan tool will show all ASD drop reasons (DTC' errors) if it drops cranking the RELAY ASD, that means the ECU knows why!, and all you do is look. ...