My 93 accord 5spd runs great for the first 10-15 miles, then it will all of a sudden hesitate badly and the check engine light comes on for the rest of the drive. It won't go over 3500 rpm's with the check engine light on. It is also very hard to start with the engine light on. After I get off work and start the drive home the same deal,, 10-15 miles is great then the same problems arise. I checked the codes and got 8 and 16. I am thinking the main relay might be the cause. Does anybody have any suggestions before I change the main relay? Thanks in advance for any and all help.

 

Code 8 is TDC sensor circuit error. Suggest downloading the Honda Shop Manual (91 Accord?) from the DIY link page for Online Manuals. This has the diagnostic for this code.

Code 16 is Fuel Injector circuit fault. Again manual will have the diagnostics.

No reason to suspect main fuel relay. Perform above diagnostics and see what you find.

regards

 

Purchased a reman distributor complete from ebay,,,,,,problem is fixed. Thanks for help