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Old Dec 26, 2001 | 11:21 AM
  #1  
RScamaro39's Avatar
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Help!

My problem is a slight idle miss and hesitation/sluggish performance while driving. The idle miss becomes bad when I take the RPM's up to around 1000 and when driving at take off and afterwards I get sputering no performance and sometimes i hear what sounds like a intake backfire (Only when I push hard on the pedal). I have replaced or checked the following parts.

92 RS 3.1L 5 Spd Man
Distriubutor (Persision Tune Recommended) here after known as (PT)
Alternator (PS) Said bad diode
Cap/ Rotor
O2 sensor
MAP checked
Fuel Filter
Added B12 Injector cleaner
Gas line dryer
IAS
TPS
Bosch wires (5 months old) no crack detected
AC RapidFires (5 months old)

Have reset and rechecked timing and firing order
Could CTS cause this problem or something else.

True story. My sister says the car is possesed I purchased a 92 C1500 SB 2 days before my problems started and she say's the car is mad at me.

Any Ideas?

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Old Dec 26, 2001 | 11:33 AM
  #2  
ploegi's Avatar
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Joined: Jul 1999
Posts: 1,556
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From: Adrian, Mi, USA
Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Sell the truck? LOL

Well, on a more serious note... Have you checked fuel pressure? I experienced the same thing on my car, and ended up replacing my fuel pump. (again, but, that's another story.....)

Also, I have heard things about the rapid fire plugs causing a miss. I have no direct experience with this though.

Have fun.....
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Old Dec 26, 2001 | 11:45 AM
  #3  
RScamaro39's Avatar
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I Think I may sale the car she(My Sis) says it will start to knock on the door soon. What type of tester should I get to test pressure and in what location should I hook into. Also whats the nominal pressure I should be at?
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