High Mileage 2.3 with problems

[jonnymotox]

I have an 88 with a 2.3 and it was up for Californias annual Smog test,I failed!
Before this I was driving to work one morning and the truck just Quit on me and when I came to a stop on the side of the road I noticed a Bright glow coming from underneath my truck. The "Cat was White Hot" and in my mind means Raw fuel being fed into the System. I had it towed home and there was "No Spark" I put in a New Distributor Complete. The truck started up and ran with a Miss at Idle after that. I put on a New "Cat" too. When I took it in to get it smogged It passed everything but the amount of Parts per(WhatEver) I have the List at home as I write this, Sorry! The max I could have was 120 and The truck is putting out about 850pts, The tester said I have Raw fuel dumping into the System. The truck has Lots of miles on it Probably about 2 or 300 Thousand on the injectors. When I pulled the plug wires, The #1 Cylinder when the Sparkplug wire was pulled had No effect on The way the Motor ran, it is getting spark to the cylinder but when I pulled the other wires one at a time if would kill the Motor. I listened to the motor with a Stethoscope and the #1 Injector was making way more noise than the others. I can't figure this out and don't want to spend an arm and a leg replacing part after part. and I did also just replace the T.P.S and it made No Difference.
Any Ideas? Any help on this would be great and I do plan on Replacing all The Injectors anyways, just because of the High Mileage.

Thanks
Jonny O

 

[mikepotts]

do a compression test! it would be my first move since you might have a valve train problem... such as a possible burned/bent exhaust valve, which would eliminate compression on that cyl and pump the fuel it injects right into the exhaust w/o burning. this would explain having spark on the cyl, and fuel being injected but not effecting the idle when pulling the plug wire.

its a place to start.

 

[jonnymotox]

Thanks I'll try that this weekend and let you know! Thanks again Mike.

 

[mikepotts]

good deal johnny... let me know the results.

 

[Wicked_Sludge]

if a compression test shows all is OK, swap the #1 injector with one of the other 3 and restart the motor. if the problem follows the injector, replace it. if it stays at the #1 cylinder, you have a wiring or some other unknown problem.

 

[jonnymotox]

Thanks guys!
I got so busy doing Honey Do's I couldn't get to it