I bought my car and it had major fuel issues. Screwed around for a few months here and there trying to get it right. Finally pulled ecu and it was beyond bad. I would check that before beating your head against the wall too much man.
Heres what I would do....Id go to Moates website and buy a QUarterhorse and a Binary Editor license...You have too much stuff disconnected to keep the cera running right especially the EGR as your timing is basically locked out..The 255lph pump will need an adjustable fuel regulator...I use a Kirkey..Hi everyone. First post on the forum.
A little back story on the car. I recently inherited this '87 GT from my uncle. I remember this car very fondly from my childhood and am very happy to be the one to bring it back to life. Through my teenage years I remember the car was a constant work in progress.
The car has been parked for a very long time. Last time it was insured was 2008. It has been parked since then. I took possession of it a few weeks ago and have been going through it attempting to get it running. Rodents had gotten into the car and made a bit of a mess of things, the odd wire chewed sort of thing. I've been able to get it to start and idle (very poorly) but that has been about it. I'm not able to touch the throttle without stalling the engine instantly. When it does eventually idle half decent it's running very rich. Still can't touch the throttle tho.
Here's some details about the car;
'87 GT 5.0
Powerdyne supercharger
Cobra intake
Fully rollerized
Don't know what heads are on it
Bbk equal length headers
Msd boost timing controller
Built AOD w/ high stall torque converter
B&M hammer shifter
5 lug conversion
New gas tank, new walbro 255 lph pump, new fuel filter, new sending unit. New spark plug wires, spark plugs and new fluids, new TPS sensor.
Smoke testing the vacuum system didn't reveal anything either.
Now the stuff that's got me confused...
The car has an ecu from a 93 cobra (according to my research)
The engine harness is from '87
There is a MAF sensor on the intake with wires going up to the firewall and seem to have never been connected to the ecu?
Map sensor on the firewall has vacuum line removed and the line coming from the upper intake has been plugged. The car actually idled worse when I reconnected the vacuum line to the map sensor.
There are all kinds of vacuum lines pulled off and plugged near where the engine harness goes through the firewall. Presumably some emissions related stuff?
The engine bay isn't super tidy and seems like things have been eliminated but left behind. There are several plugs on the engine harness that are not connected to anything and I'm not sure if that has been intentional or not. Not sure if there is a tune on the ECU to tune out the maf or not. It's been a little difficult going through things because I don't know where things were left when my uncle stopped working on the car and unfortunately he's longer around to ask.
Anyone who can help point me in the right direction would be greatly appreciated.
Thank you!
The first thing I do when I buy An A9L from a seller on eBay is have it instantly shipped to a ECU repair shop located in Florida and they change out the capacitors etc and send me a unit that gives me peace of mind and while the ECU is being rebuilt on vehicles I buy I unplug all the sensors and do a continuity test on the harness between the sensors and the ECU plug.I bought my car and it had major fuel issues. Screwed around for a few months here and there trying to get it right. Finally pulled ecu and it was beyond bad. I would check that before beating your head against the wall too much man.
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