Hello all, new to this forum but have an 87FE non-turbo that I just changed the head gasket on. The check engine light was not on before the need for the new gasket, but now it is on. The engine runs pretty well now, except that it is a little rough around idle and the light, it smooths out with acceleration and at speeds greater than idle. I have checked the timing, it has recent new injectors, and I have replaced all the vacuum hoses with fresh rubber to no avail. Any Ideas?

 

first idea would be to check what code it is throwing

 

 

Where is the best place to get a reader for this rig? Thanks for the input so far.

 

A paper clip will work or small wire. Jump TE1 and E1 and count the number of flashes and look up the codes. You will need the codes for 85-87. 88 and up use different numbers.



85-87 Codes

Code 1 System Normal
Code 2 Airflow meter signal
Code 3 Ignition Signal
Code 4 Water Thermo Sensor
Code 5 Oxygen Sensor Signal
Code 6 RPM Signal
Code 7 Throttle Positon Sensor Signal
Code 8 Intake Air Thermos Sensor Signal
Code 10 Starter Signal
Code 11 Switch Sigal
Code 12 Knock Control Sensor
Code 13 Knock Control CPU
Code 14 Turbocharger Pressure

 

Count the number of flashes? What flashes when you jump the pins?

 

The check engine light flashes.
You just turn the key on after you connect the jumper. don't start the engine.
To clear the code, just remove the EFI fuse on the mail fuse box.

 

Thanks for all the info, it turns out that I missed the knock sensor wire, it is all better now...