Oil in Spark Plug Wells

gaitski · 04-12-2011, 03:07 AM

Sorry, I've just been assuming that everyone has read the entire thread. Long story short, I replaced my valve cover gaskets and sealed the No. 3 cylinder head cover bolts b/c I had oil leaking into my spark plug wells. Once I got everything together (with new spark plugs), on my third drive on the fix, I suddenly lost all power like I'd shifted into neutral. The engine was still running and hitting the gas pushed the RPMs, but I had no go. I eventually came to a stop and the engine died.

Once I got towed home, the engine would start normally, but die after a few seconds. Hitting the gas would increase the RPMs for those few seconds, but it would still die. I then checked the codes again today and got the 43.

Honestly I don't remember if I'd d/c the battery before I took out the ECU. Did I do a stupid thing there? I guess I don't understand how you get the points of the meter into the pins while they're plugged with....the plugs.

Having heard the whole story, do you have any thoughts?

Thanks for taking the time to respond, I really appreciate it. I would love to hand this off to a mechanic near me, but folks won't touch my truck because of all the customization with the 7mge and all.

Green7mgte · 04-12-2011, 04:14 AM

d/c battery
remove ecu connectors
remove LOCKS
Reconnect ecu
reconnect battery
turn power to on
place tester leads.

gaitski · 04-20-2011, 10:57 PM

Sorry, what are LOCKS? If they are the plastic connectors that lock the wires to the ECU, how do you remove them?

shadowrun · 04-22-2011, 03:27 AM

One time I forgot to hook the vacuume hose up that comes from the power steering pump and connects to bottom of the intake, the engine would start and than die in about a second maby check to see if the hose fell out.

gaitski · 04-25-2011, 08:46 PM

Thanks for the suggestion Shadow, but I don't see any vacuum hoses coming from my power steering pump and I don't remember tracing anything that I took off of the intake back to the pump. ???

Can anyone give me a more detailed how-to on testing the ECU? I feel like I'm missing something glaringly obvious, but I don't get how you place the tester leads into a plugged in ECU.

Any help or resources would be great, thanks again.

04-12-2011, 04:14 AM	#2
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	d/c battery remove ecu connectors remove LOCKS Reconnect ecu reconnect battery turn power to on place tester leads. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

04-20-2011, 10:57 PM	#3
gaitski Stock Join Date: Mar 2011 Location: Moscow, ID Posts: 14	Sorry, what are LOCKS? If they are the plastic connectors that lock the wires to the ECU, how do you remove them? Last edited by gaitski; 04-20-2011 at 11:23 PM.

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04-12-2011, 03:07 AM	#1
gaitski Stock Join Date: Mar 2011 Location: Moscow, ID Posts: 14	Sorry, I've just been assuming that everyone has read the entire thread. Long story short, I replaced my valve cover gaskets and sealed the No. 3 cylinder head cover bolts b/c I had oil leaking into my spark plug wells. Once I got everything together (with new spark plugs), on my third drive on the fix, I suddenly lost all power like I'd shifted into neutral. The engine was still running and hitting the gas pushed the RPMs, but I had no go. I eventually came to a stop and the engine died. Once I got towed home, the engine would start normally, but die after a few seconds. Hitting the gas would increase the RPMs for those few seconds, but it would still die. I then checked the codes again today and got the 43. Honestly I don't remember if I'd d/c the battery before I took out the ECU. Did I do a stupid thing there? I guess I don't understand how you get the points of the meter into the pins while they're plugged with....the plugs. Having heard the whole story, do you have any thoughts? Thanks for taking the time to respond, I really appreciate it. I would love to hand this off to a mechanic near me, but folks won't touch my truck because of all the customization with the 7mge and all.

04-22-2011, 03:27 AM	#4
shadowrun Stock Join Date: Mar 2011 Location: chico Posts: 1	One time I forgot to hook the vacuume hose up that comes from the power steering pump and connects to bottom of the intake, the engine would start and than die in about a second maby check to see if the hose fell out.

04-25-2011, 08:46 PM	#5
gaitski Stock Join Date: Mar 2011 Location: Moscow, ID Posts: 14	Thanks for the suggestion Shadow, but I don't see any vacuum hoses coming from my power steering pump and I don't remember tracing anything that I took off of the intake back to the pump. ??? Can anyone give me a more detailed how-to on testing the ECU? I feel like I'm missing something glaringly obvious, but I don't get how you place the tester leads into a plugged in ECU. Any help or resources would be great, thanks again.