Well, this is pretty annoying. Recently, my MAF went out. What did it take with it?
The ECU!
Symptom:
Ignition timing at idle won't adjust (stuck at TDC with the dizzy cranked all the way).Vehicle won't start with TPS unplugged (goes FULL rich)I can't drive my car.
Test findings:
Key on, engine off, TPS connected = 0.4v on the return circuit.Key on, engine off, TPS disconnected = 2.3v on the return circuit (which should be 0.0v)!
Checked all the engine and ECU grounds, tested with EVERYTHING disconnected in the engine bay (O2, injectors, coil, ignitor, MAF, TPS, IACV, CTS, Temp sending unit, Distributor) and got same results...2.3v on the return circuit.
So, there's something that has started backfeeding into that circuit inside the ECU.
I'm grumpy.
RAbbleGrabbleHrrrmmphh! ECU is dead.
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Florida240sx
- Posts: 11114
- Joined: Thu Jul 01, 2004 7:17 am
- Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5 - Location: DeLand FL
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Florida240sx
- Posts: 11114
- Joined: Thu Jul 01, 2004 7:17 am
- Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5 - Location: DeLand FL
Re: (KATwo40)
haha cool deal. I need to meet up with gabe and get the 2 step setup on my ecu!
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WDRacing
- Moderator
- Posts: 15983
- Joined: Mon Nov 25, 2002 2:00 am
- Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
- Location: MFFO
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Re: (KATwo40)
DUMBASSKATwo40 wrote:If anyone needs me, I'll be in the other room...hitting myself in the face.
The dizzy was off one tooth. Car runs great and I've been working the tune.
hehe.
Re: (WDRacing)
my bet would be on a capacitor.. take a look at em their pretty straightforward to replace if you know how to solder
because if you getting voltage somewhere where it should be 0 then i think a capacitor is shorted..
Marko
because if you getting voltage somewhere where it should be 0 then i think a capacitor is shorted..
Marko
Re: (KATwo40)
awesome! Now lest seee some vids of that beast.