sammy-r

Let me start by saying I'm new to this forum.

I recently picked up a '96 SE. After a week or so the "Check Engine" light came on. I checked the codes and this is what I got.

0304 - Knock Sensor
0504 - Transmission Control Module
0705 - EVAP System
0707 - Oxygen Sensor
0903 - EVAP Canister Vent Control Valve

Not knowing if they were all recent, I reset the ECU and kept driving the car. After 3 days, the "Check Engine" light came back on. When I checked the ECU again, I had the same 5 codes. Is it possible I have problems with all these systems or could one problem cause all these errors? Anybody have a good place to start?

Thanks

99blkMax

The knock sensor code is probably a ghost code that comes around with the CEL. The EVAP system seems to be the problem because of the two codes. This could of set off the Oxygen sensor code.

sammy-r

I replaced the rear oxygen sensor and EVAP Canister Vent Control Valve and reset the light. After driving for a day, the CEL came back on with the following codes:

0104 - Vehicle Speed Sensor
0304 - Knock Sensor

I reset it again. After driving for a few hours, it came back on with these codes:

0111 - EVAP Control System
0304 - Knock Sensor

I'm thinking about replacing the knock sensor next. Any other suggestions?

njmaxseltd

iTrader: (19)

Change the knock sensor and get a new gas tank cap. If your lucky the cap will fix your EVAP code.