#Detroit diesel electronic fire commander manual code#

#Detroit diesel electronic fire commander manual code#

The ECM illuminates the CEL and SEL and stores a malfunction code if a potentially engine damaging fault is detected.

This indicates the problem should be diagnosed as soon as possible. The CEL is illuminated and a code is stored if an electronic system fault occurs. Here again, a quick read with a diagnostic reader will tell you for sure.įirst step - When you turn on the ignition does the Check Engine light and the Stop Engine Light come on and then go off after about 5 sec? It is possible that whatever blew the fuses also fried a sensor. There are several sensors on a DDEC-II engine, and if any of them is out of limits the ECM will shut the fuel off. That said, it could be something else, too. Thus as soon as the ether stops, the engine does too. The ECM controls fuel to the cylinders, and a fried ECM would send no fuel at all. A quick check with the reader will tell you for sure.Īny diesel will run if you put ether in the intake and crank the starter - that tells you nothing at all. However, if you don't have experience with this, it's probably worth the c-note or two to have your local Detroit shop come out on a service call to do this. Have you tried hooking up a DDR or Pro-Link to the ECM and seeing if you can read anything out at all? That would be my first check, before removing the ECM or anything else. Anyone have one laying around collecting dust that I could use as a 'test' ECM? Another suggestion is a plugged catalytic converter, again I have verified that as of yet.Īnother suggestion is that I may be a faulty ECM, I'm leaning towards that being the culprit. I would think that I'd have a code for it if it were bad. It's been mentioned to me that I may have a bad/shorted timing reference sensor, but I haven't verified that as of yet. My first concern is exactly WHY those three fuses cond concern is what was effected by that. I do NOT have injector pulse at either of the conncetors outboard of either side of the injector connector for the ECM. I also have a good ground at pins C and D of that same connector. I also have battery power to pins A, B, E, and F of the ECM's injector connector. I DO have power to the ECM, verified by batery voltage at pin B3 of the ECM's 30 pin connector. The engine WILL start with the help of a shot of ether, but dies immediately after I stop applying ether. Replaced fuses with correct amperage new fuses, all three are still good and have not blown. As far as I can tell, all three fuses had been in their respective holders for ages, but all blown at the same time.very interesting, and very odd. ECM (5 amp), INJECTOR BANK 1 (20 amp), INJECTOR BANK 2 (20 amp). Engine was running while I paid my cash, shut off after cash transfer like I'd turned the ignition to OFF.

Short back story.bought a 1988 Gillig Phantom with 6V92T DDEC II. Well, the saga continues unfortunately for me.