2000 engine troubles

krt · 10-21-2009, 10:30 AM

I have been studing every thread, studied my EWD, and I still can't get the engine to keep running.

The specs:
1989 3.0 MT truck
2000 AT 3.4
R150 trans
AT Harness
MT or AT ecu I have both.

I also have just bought a 2001 MT ECU and complete Harness but it is still in the mail and I need it to run by Friday.

What it does:
Fires up and will run for about 4-5 seconds.
If I gas it it die right away, choking it does nothing.

I am at work and can't remember the wiring.

I have talked to a fellow member and has suggest a few things.
I should have 3 browns to splice from the 3.4 but I can only find 2.

If I connect the 3.0 G-Y to the 3.4 G-Y the fuel pump should work, it won't with it connected like this. It will if I ground the 3.0 G-Y. Also If I put power to the large B-W coming from the 3.0 it will run the fuel pump.

Also not sure if this could be an issue but I am bypassing the the starter to the 3.4 relay and am using a different switch for that and am using the key for all the ing power.

Also have the AT Harness on it for now with the shift position sensor plugged in, and at N.

Oh and it need to drive by Friday.

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krt · 10-21-2009, 10:51 AM

Forgot to state but all EVAP is hooked up. O2 sensor are not.

lbhsbz · 10-23-2009, 03:12 PM

Quote:

Originally Posted by krt

I have been studing every thread, studied my EWD, and I still can't get the engine to keep running.

The specs:
1989 3.0 MT truck
2000 AT 3.4
R150 trans
AT Harness
MT or AT ecu I have both.

I also have just bought a 2001 MT ECU and complete Harness but it is still in the mail and I need it to run by Friday.

What it does:
Fires up and will run for about 4-5 seconds.
If I gas it it die right away, choking it does nothing.

I am at work and can't remember the wiring.

I have talked to a fellow member and has suggest a few things.
I should have 3 browns to splice from the 3.4 but I can only find 2.

If I connect the 3.0 G-Y to the 3.4 G-Y the fuel pump should work, it won't with it connected like this. It will if I ground the 3.0 G-Y. Also If I put power to the large B-W coming from the 3.0 it will run the fuel pump.

Also not sure if this could be an issue but I am bypassing the the starter to the 3.4 relay and am using a different switch for that and am using the key for all the ing power.

Also have the AT Harness on it for now with the shift position sensor plugged in, and at N.

Oh and it need to drive by Friday.

I sent you an email w/ my phone number...give me a call and I'll walk you through it.

The green wire from the old harness is worthless...forget about it. If you look at the diagram, the green wire to the Circuit opening relay comes straight from the old MAF, and goes through no other plugs before it gets to the COR. You've got to run the green/yellow from the new ECM into the green wire to the COR. I cut the wire about 6 inches from the COR and soldered in the new G/Y...problem solved.

krt · 10-27-2009, 10:55 PM

Well lbhsbz and I got her running.

A few wires from the ignitor had gotten pull back so they weren't making contact but looked to be in the plug.

A big thanks to lbhsbz for all of his help!!!!

22RUCRAZY · 10-27-2009, 11:19 PM

hell ya glad to hear that ,

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10-21-2009, 10:51 AM	#2 (permalink)
krt Registered User Join Date: Sep 2009 Posts: 6	Forgot to state but all EVAP is hooked up. O2 sensor are not.

10-27-2009, 10:55 PM	#4 (permalink)
krt Registered User Join Date: Sep 2009 Posts: 6	Well lbhsbz and I got her running. A few wires from the ignitor had gotten pull back so they weren't making contact but looked to be in the plug. A big thanks to lbhsbz for all of his help!!!!

10-27-2009, 11:19 PM	#5 (permalink)
22RUCRAZY Registered User Join Date: Sep 2009 Location: northern california Posts: 118	hell ya glad to hear that ,