so Monday I picked up a 92 Z28 with 62k miles 305 TPI 5speed.. i test drove the car before i bought it and it ran great, good power ect. when i got it off the trailer yesterday I was tinkering with a few things on the stereo system while the car idled (about 30 minutes) I noticed the idle to be a little rough and planned to do a full tune up anyway. so later on i took it for a drive and noticed it to be slightly missing and surging a bit then out of nowhere the car just quit it would idle but barely and if you tried to rev it it would fall on it face and it couldn't be moved so I walked back to my house and went back to tow the car home about an hour later and the car started right up running like nothing ever happened. when i got home i let it run in the yard for a good 30-40 minutes with a fuel pressure gauge on it it sets steady at 38 psi idle jumps to 46 if i pull the vacuum off the regulator it wouldn't quit running again. so i drove it to the gas station and filled the tank and kept the fuel pressure gauge hooked up so if it started to act up i could see if it lost fuel pressure. after filling the tank i started the car and as i went to pull from the gas pump it died and wouldn't restart fuel pressure still holding so now i know it's not fuel pump related. as i was waiting for my wife to come pick me up i checked foe spark by pulling the #1 wire off the plug and placing it close to something metal and i also had spark. so i had fuel pressure and spark but still no fire? so when my wife came i grabbed a can of brake clean from her car and sprayed it in the pcv hose and cranked the car. it started a few seconds and shut off so i did it again and it started again and was chugging on like 3 cylinders but kept running i couldn't touch the throttle of it would die. so i just somply shut it off and restarted it again a few minutes later and boom fired right up like nothing ever happened so as soon as it started i shut the hood and left the gas station sideways with the tires smoking and beat the tar out of it all the way home ( about 1.5 miles) i was done at this point and just called it a day. so today is a new day and i need this car fixed so does anyone have any ideas what my problem could be? I have been reading alot about injectors overheating and failing, would this cause the engine to just shut off? can an ignition module cause this type of problem by not sending signal to the ecu? it almost acts like an ignition module but i have spark and rpms on my tach while cranking.. I should also add that the coil is a MSD blaster and the fuel filter is new..

Sorry for the long story but i wanted to give as much info as possible.. currently the car is outside running so i can get it hot and check the resistance on the injectors..

thanks
Mark

 

#2 injector has 5 ohms the rest are 16.6.. will one bad injector overheat the driver in the ecm and shut down that bank? i'm going to replace the injectors but i just want to make sure that why the car quits running once it's fully warmed up

 

you answered your own question ! contact southbay fuel injectors get a set of bosch 3's coming . Use the promo code Tuned
http://www.southbayfuelinjectors.com...o_305_TPi.html

 

Called south bay and ordered the bosch 3s.. I wish I would have seen that promo code before I did.. Also I did confirm this by unplugging the bad injector and driving the car around on 7 cylanders and it never died.. I'm so glad I figured this out before I spent a load of money replacing good parts