Engine misses while idling and through driving range
07-23-2005, 12:06 PM
#1
Thread Starter
Join Date: Jul 2005
Posts: 1
Engine misses while idling and through driving range
Hope some one can help! I have a '93 convertible 5.0. The car only has 46,000. Recently the car started missing while idling and most noticable between 1500 and 2500 rpm. When the engine is cold runs great. But when up to normal temp engine misses. I cleaned MAF sensor and IAC Valve. One mechanic told me it was the copmuter under the dash? Anther mechanic told me it was the ground wire running to the computer under the dash? Possibly something else? I live in St Thomas, Virigin Islands and a good mechanic is hard to find and trust. Please help?
07-23-2005, 02:23 PM
#2
6th Gear Member
Join Date: Nov 2003
Location: Pittsburgh, PA
Posts: 5,182
RE: Engine misses while idling and through driving range
i had a miss when i first got my car. it turned out to be 2 cracked spark plugs. this may not be your problem but why not check them first.
07-23-2005, 03:59 PM
#3
2nd Gear Member
Join Date: Mar 2004
Location: Va Bch, Va
Posts: 296
RE: Engine misses while idling and through driving range
also check your ignition wires they be cracked or may have laid on the header and burned the jacket. also check under you distibutor cap there may be some condensation.
07-23-2005, 04:45 PM
#4
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
RE: Engine misses while idling and through driving range
ORIGINAL: jaskew
Hope some one can help! I have a '93 convertible 5.0. The car only has 46,000. Recently the car started missing while idling and most noticable between 1500 and 2500 rpm. When the engine is cold runs great. But when up to normal temp engine misses. I cleaned MAF sensor and IAC Valve. One mechanic told me it was the copmuter under the dash? Anther mechanic told me it was the ground wire running to the computer under the dash? Possibly something else? I live in St Thomas, Virigin Islands and a good mechanic is hard to find and trust. Please help?
Hope some one can help! I have a '93 convertible 5.0. The car only has 46,000. Recently the car started missing while idling and most noticable between 1500 and 2500 rpm. When the engine is cold runs great. But when up to normal temp engine misses. I cleaned MAF sensor and IAC Valve. One mechanic told me it was the copmuter under the dash? Anther mechanic told me it was the ground wire running to the computer under the dash? Possibly something else? I live in St Thomas, Virigin Islands and a good mechanic is hard to find and trust. Please help?
When a car is cold, it ignores all inputs from sensors and smog related stuff. After it warms up, the computer reads the sensors to make adjustments from timing to A/F.
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