air fuel probs

[TurboBob]

How do you know the ECM was replaced?

The ECM's in these cars hardly ever fail, unplug the harnesses and look down inside the connector and at the plug faces for corrosion.

Hopefully they will be nice and clean.

The chip is inside the cover on the side of the ECM, 1/4" nutdriver/socket required for access (although most of us leave the cover off)

Bob

 

[turbovader]

here it is.

 

[TurboBob]

at first glance, it looks ok.

that might be a stock chip, hard to tell in the pic.

now squeeze the blue handle at the top of the connectors and unplug the harnesses. Look for corrosion in the ECM side as well as the harness side.

Bob

(we're getting there)

 

[TurboBob]

since you have a fuel pressure gauge, key the car on, but don't try to start it, so the fuel pressure primes.

then key back off and see how long it takes for the pressure to bleed off.

Bob

 

[turbovader]

connections on ecm look clean. the fuel pressure holds for long for me to wait to bleed off.

 

[RegalT-type85]

This will sound bad but pour a lil gas into the TB/intake itself(put back everything), crank it and see if it will run. Get a lil spray bottle with lil soap mix, spray your IGN wires a bit, might be grounding somewhere. Check your Cam sensor, see if it wiggles around a bit or its nice and firm in place.


It sounds to me like a ground problem, check the body grounds and clean them up as well, same thing steel wool or something(both wires and body) Your ECM looks good but tell us the ECM # also same for the Chip/calpak(smaller chip next to it) numbers and any writing on them.

Do all the basic stuff, check your wires. If they are in correct order, test your coil pack etc

 

[turbovader]

Ok I will try that. What's strange to me it ran at one point then stopped. When it did run it ran rough with a bunch of smoke.

 

[turbovader]

What is the ign wire order?

 

[turbovader]

I just plugged in the electric fan and it runs with the key off.

 

[TurboBob]

thats probably a bad delay relay, its the big one on the driver side fender.

just unplug the delay relay for now.


Wrong ECM chip are another possibility if the person that replaced them didn't put the right chip in the new one...

What are the letter codes on the ECM label and the little silver label on the main chip?

 

[TurboBob]

What is the ign wire order?

standing at the front of the car, looking at the engine



1 5 3

4 2 6


(this is from memory, help me out here guys)

Bob

 

[turbovader]

The deal is that the car ran fine then sat over a year now it won't run.

 

[norbs]

You changed the spark plugs, did you mix up the wires?
Is your fuel system all flushed out with new, by draining it from the fuel rail, with the pump on?

Check your wires as per the diagram.

http://www.installationinstructions.com/107128.pdf

 

[turbovader]

I did not drain all the gas yet I thought that I would have to drain the tank it has a half tank of gas in it.

 

[norbs]

Get the fuel pump running, take the line off your FP gauge put it in a gas can and drain it all out. Check your grounds at the back of the cylinder head on the passenger side.

 

[turbovader]

How long is your fuel pump supposed to run when you turn your key on? Also how do I get my fuel pump to keep running to drain all the gas in my tank?

 

[norbs]

2-3 secs with the key on. I thought you told me that you got the pump to run all the time by taking power from the hood light and connecting it to the gray wire beside the alternator?????

 

[turbovader]

It runs for 3 secs or so turning the key. But the wire deal by the alternator with the grey wire does not wirk.

 

[norbs]

does the hood light work?

 

[turbovader]

I dont know if it does or not. Since the motor soaks the plugs upon start up how do I lean it out?