Car runs great on 3 cylinders? WTF?!?!

[douglas vincent]

OK, long story short if I pull off each plug wire at the coil (one at a time), #1, #3, #4, all cause the engine to run bad. I plug them back in and engine runs fine. I pull #2 and nothing happens. There is spark coming out of the coil pack, if I pull the plugwire off the spark plug you can hear spark. But no difference in idle.

If you pull the fuel injector wire off and drive, it drives like shit.

If you pull the fuel injector wire off and rev it to 3500 and then stick it back on at 3500, you can "kinda" hear a difference.

I tried a different coil pack, same stuff.

Any ideas?

Thanks

[scuzzy]

I heard our engines run really great on just three cylinders.. for running on three cylinders that is..

makes me wonder about my car... lol.

[thehookeup]

heres a list:

swap injectors

possibly blue print them

take my spark plug wires

and give me your supercharger

[napphappy]

Try switching the plug wires around to see if the problem follows the wire(Bad wire)

[douglas vincent]

And the answer is........

bad fuel injector. don't know if it is broke, plugged or what, but I swapped in my 370 cc injectors and rails and an finally happy again. Bleah... what a day.

[scuzzy]

And the answer is........

bad fuel injector. don't know if it is broke, plugged or what, but I swapped in my 370 cc injectors and rails and an finally happy again. Bleah... what a day.

what, was it just 'used' to running with cylinder 2 down?

[rallysam]

FYI I drove 300 miles on just 2 cylinders. It even idled and it even got up to highway speeds, but both only barely.

[douglas vincent]

The injector was getting progressivly worse since yesterday, until it quit 100%.

[thehookeup]

injector wiring never goes bad, well at least that i have seen. i have never seen injector wiring fo bad, from what you desicribed to me on the phone its definatley the injector maybe even the filter lol. anyway hit me up tomorrow.... i dont htink you need them but i can drop off the wires if you want. i gotta go to oil filter service tomorrow to get a new t bolt hose clamps anyway i call ya tomorrow morning sometime.

[sammydafish]

Wiring on my #3 injector went bad on the first wagon. Replaced the wire and plug and it was mint.

[Matt Monson]

I know of an old Ej18-T that ran on 2 cylinders for close to 3 months. It was the owner's drag car and daily driver. He needed it for work and didn't have time to go find a junkyard Ej18 so he just kept driving it since it drove home from the track the night he popped it...

[douglas vincent]

Cured.

Crushed O-ring. Was leaking fuel under pressure. No wonder I was running RICH!!!!!


I installed the injectors in a stock fuel line setup, took a spare fuel pump and dumped it into a bucket of alchohol, and pressurized it.

Bingo!

Then I ran all 4 injectors for 15 seconds each twice. All flowed basically the same.

I swapped the rails and injectors out and 35 minutes later the wagon runs fine.

I then installed the 370 injectors and rails into my test jig and they sprayed 22% or so less than the 430....

[georryan]

How did the car run? How did you know it was having a problem? Was it sputtering at all?

[douglas vincent]

With the leaking O-ring, car ran like absolute shit. It leaked so bad that you could pull the plug wire off at idle and it never changed its tune, ie so rich it killed the plug.

It ran so rich that at cruising speed 60 ish in fifth it would be 12-1 AFR.

Start up was a bitch......


Now?

FAST AS SHIT!!!! LOW Low lOW LOW AFR when I want them.

I am a happy clam!