Question about 2005 Chevrolet Impala

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Check engine light is on, 2005 impala ss

Ok so it all started when i got MSD wires, Coils, and new sparkplugs. It ran wonderful for about 2 days. The the check engine light came on so i went to auto zone and got a diagnostic the code was p1350... So we put on the stock coils and reset it everything was fine no light.. then i put one MSD coil on and as soo as i started it the check enginelight was on... so we checked all the the MSC coils with a voltmeter and the one that made the light come on was bad so i exchanged and got a new one and put them all back on..... drove home no check engine light... well today i was driving and it popped on again so i put all the stock ones nack on and called it quits no check engine light good to go.... then later on tonight it came on again!!! the diagnostic says is the ecu that plate that the coils [lug inot... is that possable?.. its about a $125 but i dont wanna buy it if i dont need to the car still runs fine.... heres another kicker im getting a smaller pulley for my supercharger and getting my computer reprogramed on friday and they said they wontt do it with the check engone light on... what do i do??!!! please help

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  • Weaver412 Feb 13, 2009

    Ok well here the deal I replaced the stockcoils removed the pcm.ecu whatever its called that the coils plug into and cleaned it very well installed everything the the check engine light is still on the the same code and tomorrow Im getting a smaller pulley put onmy supercharherand getting my computer reprogramed to work with the highr boos andair to fuel ration and shift points and all that othr good stuff..... i just have ocd and tthis light is really bothering me.... we also tested to stock coils and the other thing with a machine designed for testing that stuff and its all fine...my engine starts right up good throttle response and it runs very smoothly... hmmm winder what it could be????

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My check engine light is on in my 2005 impala. I had a mechanic put a code reader in and no problems came back. What is the reason behind this?

Posted on Sep 18, 2016

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The P1350 code on your car is described as Ignition Control (IC) System Fault Conditions. Have you checked your stock coils with a voltmeter? You know I've seen "aftermarket" parts fail pretty quickly. In many cases, OEM replacement parts have the quality you need to have a reliable car. Not all the time, but in some cases. In addition to posting here you might also want to post your question at http://www.obd-codes.com Good luck!

Posted on Feb 13, 2009

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