Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - How can you test an ECU for a 1993 Civic ?

Fosters80 · 04-11-2012, 01:32 AM

Its been a while since I had one of these, and I'm not able to get at my resources at the moment, but I seem to remember the 93 DX being prone to ECU failure. Try removing it and taking the cover off the ECU, there was a spot on the board that would be noticeably burnt. Also, and I apologize if you already mentioned this, if the CEL is on but no code is stored, it's bad.

There is no bench test that I am aware of. The dealer uses an inline breakout box to test the circuits in conjunction with the service manual.

Good luck!

04-11-2012, 01:32 AM	#13 (permalink)
Fosters80 EcoModding Lurker Join Date: Mar 2012 Location: Copperas Cove, Texas Posts: 11 xAviar - '06 Scion xA Dr. Grey - '02 Ford F-150 Supercrew Thanks: 3 Thanked 2 Times in 2 Posts	Its been a while since I had one of these, and I'm not able to get at my resources at the moment, but I seem to remember the 93 DX being prone to ECU failure. Try removing it and taking the cover off the ECU, there was a spot on the board that would be noticeably burnt. Also, and I apologize if you already mentioned this, if the CEL is on but no code is stored, it's bad. There is no bench test that I am aware of. The dealer uses an inline breakout box to test the circuits in conjunction with the service manual. Good luck!