Rennen

Ok, I need a little help on this one.

A friend of mine has a 1990 240SX with KA24E. The first injector towards the front of the car(#1?) was leaking real bad. I had recently replaced one of my own injectors with one from an extra fuel rail I bought from someone parting out their car. I still had the rail sitting around so I replaced his with a good injector from the rail. The rail and injectors were from an 89 SOHC.

Anyway, the injector(we replaced) was still leaking a week later, so I pulled it out to see what was wrong. The O-ring had been shredded even though it looked fine when we installed it. I pulled the rail off to see what was making it tear, and found a small scratch on the inside of the rail where the O-ring would seat. Concerned that this is what was tearing the O-rings, I replaced the entire rail, but used the remaining 3 injectors and replacing the #1 injector with torn O-ring. We torqued it down and reconnected all the vacuum hoses, but now the Idle was horrible. The engine would shake back and forth a lot! I checked the vacuum hoses to make sure I hooked them up correctly and everything appeared to be fine. Also, it didn't sound like the engine was missing, so I think all of the injectors worked. So I sprayed a bunch of carb cleaner into the throttle body and MAF to clean things out and the shaking calmed down a bit, but was still worse than before. Also, there was liquid spraying out of the exhaust, it was odorless and had the consistency of water. At this point it was getting dark so we quit, and as he was closing the hood, I noticed that the #1 injector was still leaking!


Sorry about the long story, but anyone have any clues as to what could be wrong?

-Matt

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'89 Nissan 240SX fastback: #23 DSP/RallyMod2/Track Slut
'95 BMW 540i 6 speed: Ultimate Commuting Machine

PFM Racing
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