I put a listing in earlier and no one responed so I did a few more things. The car was running OK with a slight ruffness before I checked the injectors by my ohm meter and when I put the injector connects and their retainers back the car would not start. It poped, sputtered and died. I got it started once and had to hold 2400 rpm and she was missing so bad you would think someone reversed the plug wires. Strong fuel smell after each start attempt. The smell of the exhaust was a bad stinch hanging over the garage after the 2400 rpm run. Timing is OK, rotor and cap and wires, I checked and OK...the plugs are really wet like she is dumping fuel or running rich. The 9.5 ohm injectors plug was dry. I think this injector is weak. But that is all I did and either increased a current problem or made some problems.

I changed the computer. I had an extra. That made no change. THERE ARE NO CODES. I DO NOT KNOW WHY. I was hopping for something to give me some direction. JUST FLASHES 12 ALL THE TIME.

Now when I unpluged a couple of injectors electical connections I shot some electric switch and contact cleaner into the plug and blew it out. Than I unscrewed the "fuel pressure assembly cap, off, exposing the tire type valve, pressed the valve and fuel tribled out under some pressure. Why I did that I do not know? I guess to see if it leaked. It looked a little wet around the fitting. I have smelt raw gas for a couple of months in the engine compartment or around the hood area, but never could find anything. May it was this tire valve, needle and seat leaking. I noticed this valve had increased (weaping)leaking after I messed with it.. This is the assembly you hook up a fuel pressure gauage to see what your pressure is. I than seated the valve with a seating tool, dryed all around the fitting with a small towel, got the car started, ran it for 30 seconds and took a look after running the car, if you call it that and wet fuel was around the fitting and filled the seat and had dripped on the injector alum rail.

COULD THIS FUEL PRESSURE Connector BE MY PROBLEM IF THERE IS A SMALL LEAK ON THE RACK???...MAYBE THE FUEL PUMP CANNOT KEEP UP, air is getting in the system...I am guessing here. Bottom line what ever it is it does not trip a code even on the replacement ECM I put in tonight.

These were the only things I touched under the hood from a running, slightly ruff motor to a motor now that will not start and when does it runs so bad she dies.

I did find an injector with 9.5 ohms where the other 7 were all 16.6 ohms.

Any input is very much appreciated.

Bob :smash: :grouphug: :confused: :withstupid:

 

The small gas leakage out of the shraeder valve shouldn't tax the fuel pump, but should be replaced as a fire hazard. The injector with the 9.6 ohms resistance is suspect and if your injectors weren't replaced under warranty (replacement injectors should have a green ring), then I would replace all of them as one OEM batch had coils exposed to gasoline and the coils failed prematurely (inter turn shorts causing lower resistance readings just like your 9.6 one). I think this started with the 89's. It sounds like your injectors suddenly started leaking and it causes so rich a mixture it won't start nor run right if you do get it started. I think its injector replacement time.

 

Thanks I agree, you know I moved two of the injectors. Spun them so I could get at the connectors. I wonder if I broke a seal that was not so new at 120,000 miles. I will check fuses in the morning.

If the injectors never got replaced did I read you right that they might get a replacement if they were not changed???That would be a gift and half.

Bob

 

Your 89 is no longer under warranty so replacement is on your nickle. The injectors have an o ring seal and you might have abraded the o ring when you rotated the injector. But even so, your plugs shouldn't be wet with fuel unless you have no spark. I'd also check for spark when cranking. Engines need spark (and at the right time), fuel, and air to start and run.

 

Yup, a wet plug is either fauled or not getting the juice...I will pull the roter cap all the way to see if I can see anything.

Thank you very much for your input...I will do my home work tomorrow.

Regards

Bob in Stockton CA :seeya

 

good luck :cheers:

 

Well you were right the 20 amp fuse was blown of the two...Leaving the ignition on by accident was the problem. I took the car on the freeway it accelerates nice, but you know it is running ruff at an idle and when you let off the accelerator. It is not a consistant miss like ignition. The weak injector when you listen to it with a stethascope has a different sound than all the others. Also, out of the exhaust, out of no where, at an idle it will give you a puff sound, like a mini back fire. You can feel the motor with your hands and it is just running ruff by feel.

Now I need to find out where to get a good set of injectors, just a good replacement type, this is not a racing machine I just want it to run right. Any ideas let me know.

Thanks again,,,with out you I would have not got this second problem solved.

Regards

Bob :hurray:


[Modified by rmwick55, 6:51 PM 1/4/2004]


[Modified by rmwick55, 6:52 PM 1/4/2004]


[Modified by rmwick55, 6:53 PM 1/4/2004]


[Modified by rmwick55, 6:53 PM 1/4/2004]