HELP PLEASE!!! Car ran fine after TBI to TPI swap, cut off, and wouldn't restart?!?!
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 532
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
HELP PLEASE!!! Car ran fine after TBI to TPI swap, cut off, and wouldn't restart?!?!
I've searched the archives...cant find anything. I have a 350 in my '89 RS...and just took off the old Lo3 TBI setup in favor of an '88TPI setup. When i finished up, started it up, checked everything, took it for a test drive...I got about a mile down the road, and the car just cut off while I was driving. Then it wouldn't start back up! I checked all fuses and the injector fuse blew, so i replaced it, but it wouldn't start back up. All fuses after that were fine, fuel pump is coming on (yes i put in a TPI fuel pump), spark plugs are getting fire, has plenty of gas etc. I got a test light grounded to the chasis and poked the red wire (power wire i think) to each injector (to open the injectors up), and the car fired up, but then died right away. So I thought it might be the ground to the injectors, but they were grounded. I didn't think to see if the security light came one...but I dont think '88 had vats (my '89 did thought...maybe that's a problem?) It cranks over and sounds like normal startup, but wont start. Keep in mind that it initially ran, but cut off WHILE I WAS DRIVING....I'm sure there aren't many things that would cause that. I need help BADLY....thanks guys.
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 532
Likes: 0
From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Now I'm REALLY comfused. I know 2 guys w/ an '87 computer, so I borrowed theirs to see what it would do w/ theirs, well the car fired right up (with both their computers), but then died right away. Same result a few times. So then when I tried to start it up, I gave it some throttle to keep it from dying, but it died the second I pressed the petal....it's like the injectors wouldn't put out the gas the motor needed to keep up w/ the amount of air I let in. Same result every time...start up, die. I just put a TPI fuel pump in the tank....so unless it already messed up or they gave me the wrong one!! But it does come on and start the car. Can the fuel pressure regulator mess up?? Today I'm going to check the fuel pressure and try and read the trouble codes (w/ my computer). If anyone has any Ideas, PLEASE help, because if I dont get this fixed by monday when I go back to work, I'm screwed!
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