C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

89 runs like crap

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Old Jun 30, 2008 | 11:10 AM
  #1  
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Default 89 runs like crap

car sometimes has long crank time other times starts right up when driving at 70 km feels like its going to quit runs great at high speed idles rough but when i had injector flush ran great on the can fuel pump pressure in spec but a little eratic also bleeds back exhaust smells like its hot major tuneup done new water pump and battery the odd time while driving when you jump on it to pass it feels like it quit let up on throttle jump on it again and it takes off like a rocket HELP ME PLEASE
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Old Jun 30, 2008 | 11:17 AM
  #2  
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FICINJECTORS
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Originally Posted by sand1
car sometimes has long crank time other times starts right up when driving at 70 km feels like its going to quit runs great at high speed idles rough but when i had injector flush ran great on the can fuel pump pressure in spec but a little eratic also bleeds back exhaust smells like its hot major tuneup done new water pump and battery the odd time while driving when you jump on it to pass it feels like it quit let up on throttle jump on it again and it takes off like a rocket HELP ME PLEASE
join the club of multec failure. Before you spend any money. Do an ohm test on the injectors cold then hot and post the results.
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Old Jun 30, 2008 | 11:18 AM
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Could use a period or comma sometime.
First, any codes? SES light on?
Second, 1989's have the multitec injectors which are bad, PERIOD. If you had them flushed I'm assuming you used infector cleaner. VERY few cleaners were approved for them. I would read the threads here about injectors. Ohm them both cold and hot to see if they are bad.

Before I had major injector problems (ECM was shutting BOTH banks down) the car's idle was always suspect, didn't want to make a left turn in front of traffic unless had ALOT of room. Since injector replacement car runs like a vette should.

Take FICINJECTORS advice on injectors, he's the expert and best vendor around.

Last edited by seenalot; Jun 30, 2008 at 11:20 AM.
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Old Jun 30, 2008 | 03:22 PM
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Originally Posted by sand1
Car sometimes has long crank time, other times starts right up. When driving at 70 km feels like its going to quit. Runs great at high speed, idles rough, but when i had injector flush, ran great on the can.
Fuel pump pressure in spec, but a little eratic. Also bleeds back.
Exhaust smells like its hot. Major tuneup done, new water pump and battery.
The odd time while driving, when you jump on it to pass, it feels like it quit. Let up on throttle, jump on it again, and it takes off like a rocket HELP ME PLEASE
That should help !!
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Old Jun 30, 2008 | 05:21 PM
  #5  
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Thanks Agent!
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