Symptoms of a Bad ECU....

[xdannyx25]

I recently rebuilt my engine completely and put it back in. Everything went well till I started the shit. It would idle at 3500 rpms, then suddenly after my cousin started the car like 5 times to hear the exhaust it wouldnt start again. So I changed the IACV since I had an extra one to fix the idle problem hopefully. But it doesnt start due to theres no spark and no fuel. The coil harness isnt getting any voltage besides .7 on cranks. I decided to change the cam sensor with a used one (doesnt mean its good) still didnt get spark, I then put in a brand new crank shaft sensor and still no spark. Both the crank sensor and cam sensor get no voltage. I got fed up and gave up on the spark shit for that day and moved to the fuel problem. The fuel pump wouldnt run, so I replaced it since i have warranty, still nothing, I check the relays and had them click with wires and they did. Also to add theres no check engine light. The ASD relay is good.

-New fuel pump
-Relays suposively check out good
-New crank shaft sensor
-2 different Cam sensors
-2 different coils (i just changed it for the hellk, have an extra one)

Its a 1997 Mitsubishi Eclipse GS Automatic

 

[GSGoinFast]

I recently rebuilt my engine completely and put it back in. Everything went well till I started the shit. It would idle at 3500 rpms, then suddenly after my cousin started the car like 5 times to hear the exhaust it wouldnt start again. So I changed the IACV since I had an extra one to fix the idle problem hopefully. But it doesnt start due to theres no spark and no fuel. The coil harness isnt getting any voltage besides .7 on cranks. I decided to change the cam sensor with a used one (doesnt mean its good) still didnt get spark, I then put in a brand new crank shaft sensor and still no spark. Both the crank sensor and cam sensor get no voltage. I got fed up and gave up on the spark shit for that day and moved to the fuel problem. The fuel pump wouldnt run, so I replaced it since i have warranty, still nothing, I check the relays and had them click with wires and they did. Also to add theres no check engine light. The ASD relay is good.

-New fuel pump
-Relays suposively check out good
-New crank shaft sensor
-2 different Cam sensors
-2 different coils (i just changed it for the hellk, have an extra one)

Its a 1997 Mitsubishi Eclipse GS Automatic

you double poster you

see if you can find anyone with an extra 97 ecu that you can barrow and try it out

 

[xdannyx25]

I need the most help i can get

Would a 96 work? its the same model and automatic?

 

[Danny_305]

well the only eclipses prone to bad ECU's are the 95 ive never heard of other eclipses having that problem when my ECU went it would cut off every few minutes and the car wouldnt keep idle



::sup man im the guy who bought the front bumper from you::


but ya try finding a 97 and plug in the ecu and see what happens

 

[GSGoinFast]

I need the most help i can get

Would a 96 work? its the same model and automatic?

no the 96 wont work, the only 2 years with the same ecu's are 98 and 99