Malibu #4 cylinder not fireing

[rugby_7]

I ordered a noid tester, Im going to have so many new tools by the time this car is running

[rugby_7]

Got my noid tester, says the wire to the #4 injector is bad, just need to find out where...

[Tech II]

If the noid light doesn't flash or light, with the key, on one leg has battery power and the other is the control circuit to the PCM.....If you have battery power on one leg(use test light), then you know it is the control circuit to the PCM.....check the bulk harness connector for the injectors for a bad connection........if you see nothing check the wiring from the bulk harness connector to the injector(injector connected).....do ohm check should be 12 ohms.......if ok, you know it's the wire from the harness to the PCM....if not ok, then it's the wire from the harness to the injector connector.....

If you did not have 12 volts, check wire same way you check control wire, using a test light instead of ohm meter....

[rugby_7]

The ECM turns out to be bad, so I ordered a new one and put it in but when I try to start it the anti theft deterrent kicks in and wont let it start. Is there any way of clearing that?

[rugby_7]

The last ECM back in 2012 turned out to be the wrong one, got the correct one put it in and ran good until the other day. I got rear ended at a stoplight and the car ran fine for about a week. Then I started it and let it warm up for about five min before I left for work. It ran good then all of a sudden it acted like it is running on 3 cylinders. Pulled it into the garage and finally got a check engine light. The code came up as a cam position sensor and egr valve. Replaced cam position sensor, still runs bad/wont start. Pulled the plugs and the #1 cylinder plug was wet. I replaced the plugs and switched around the coils, checked the plugs #1 was wet still. I just happened to find another ECM for $16 shipped on Ebay so I ordered it, should be here soon. I figured I could put it in and see if its the same problem again. If it happens to be the ECM what would make them burn up. Its weird that twice where it seen a jarring hit would make it run bad. Would the EGR valve do this? I ordered one for it but most I seen a EGR valve do is mess with idle.

[rugby_7]

Sorry I ment crankshaft position sensor not camshaft

[Tech II]

Since your plug is wet, it seems that cylinder is not firing......that would have nothing to do with the PCM.....chances are it's the ICM or the coil tower....see more towers be the problem than ICM's.....

[rugby_7]

Im getting spark on all four cylinders. I ordered another HEI Tester cant find my old one. I got an email yesterday saying its backorderd two weeks. I pulled the cover and put the plugs in the boots, leaned the plugs against the block and all had spark. I did the tests on the ICM until I got to the communication between the ICM and the PCM since I don't have a HZ setting on my multimeter.

[Tech II]

If you are getting good spark on all four cylinders, yet the number one plug is wet, have you checked compression in all the cylinders? If ok, then it's possible that the #1 injector is dumping fuel?

[rugby_7]

Checked compression, its all good. I borrowed a coil tower from a friend and put it on mine. Started right up and ran good. I think once the tower was bolted down in the engine it was grounding somehow. Thank you for your help!