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Old 02-12-2009, 02:28 PM
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Test Codes

Ok I did the test to check for codes on my car. Ive been having the fluctuating idle prob and following the manual it states to disconnect the 2pin con. if idle goes down check ecm if idle stays the same its the IAC. So i did the code test and 1st time came up with 3 which is map sensor the 2cnd code is 74 which isn't a code. The manual states to replace the ecm if the code isn't stated in the manual. & long blinks and 4 short blinks maybe I read it wrong. So I did the ECM reset and retested this time I only came up with one code. 74. Wierd thing is I didn't even get a code for my O2 sensor which I shouldve gotten cause I dont have one. and yes CHeck eng light was already onb due to no O2 sensor on the cat. So any advise out there. Any have an ECM. should I try n replace the map sensor and go from there. Or could I have just gotten a faulty factory code
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Old 02-13-2009, 11:16 AM
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Re: Test Codes

74 random misfire cylinder 4

o2 sensor on down pipe

replace map sensor after checking it using the manual
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Old 02-15-2009, 11:40 AM
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Re: Test Codes

Hmm But Here's a ? for ya My car doesn't have a simptom of a missfire it drives find, With out it;s occasional jurk, and the only Prob I have is the fluctuating Idle. What are siptoms of a missfire. Usually bogging down rt, or when you take off it sputters, Correct.
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Old 02-15-2009, 12:07 PM
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Re: Test Codes

Quote:
Originally Posted by ludydude96 View Post
Hmm But Here's a ? for ya My car doesn't have a simptom of a missfire it drives find, With out it;s occasional jurk, and the only Prob I have is the fluctuating Idle. What are siptoms of a missfire. Usually bogging down rt, or when you take off it sputters, Correct.
then replace your ecu smart ass
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Old 02-15-2009, 03:51 PM
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Re: Test Codes

Wasn't tryin to be a smart a asking ?'s DUDE! Who pissed in your cherios man.
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Old 02-15-2009, 08:20 PM
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