Originally Posted by dubcac
I believe the light on the ECU will only come on if a code is being thrown. That's how OBD0 cars check the codes. If you have no spark, I'd bet on a coil/igniter problem inside the distributor, not the ECU.
Thanks for the info. That was my first guess also and I have already replaced a them with a brand new distributor which included the ignition coil and ignitor, distributor cap, and rotor. This is why I am now looking at the ECU. As for everyone saying just replace with a known good one, well.. I am having a bit of a problem finding a known good one unless I want to pay $895 from Acura for it. I am in california, and the ones that I have found online have the federal code on it, not the california one. my ECU is the L01 version for the 90-91 acura integra 4-door manual transmission. I am wondering if the A01 will work or not being I can find that online for around $250.
Thanks.