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Check engine light

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Offline FWD

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Check engine light
« on: November 09, 2011, 08:42:05 PM »
My check engine light recently started coming on intermittently (now on for good). When on it runs very rich. The light flashes 4 times, twice. Is that a code I can look up somewhere? I've done my best to check all the vacuum hoses, dident find anything.
Any suggestions?  ???
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Offline weldboy

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Re: Check engine light
« Reply #1 on: November 09, 2011, 08:56:28 PM »
Here is Code 44 Idle switch of TPS, open circuit

That is your throttle position sensor
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Offline talonxracer

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Re: Check engine light
« Reply #2 on: November 10, 2011, 05:14:29 AM »
The ECU has entered limp home mode, it is literally dumping a bunch of raw fuel in to be safe. I would check the condition of the TPS's connector, reset the ECU and see if it comes back.
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Offline Rhinoman

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Re: Check engine light
« Reply #3 on: November 10, 2011, 03:31:05 PM »
If the ECU detects a bad idle switch it uses a default setting of 0.5V. It shouldn't have too much effect, that exactly how all the later ECUs work (no idle switch on those). You should check that the TPS is correctly adjusted and that there are no bad spots on the TPS itself.
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Offline lv2fsh

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Re: Check engine light
« Reply #4 on: November 11, 2011, 08:06:09 PM »
What kind of car? Sammy or kick and what year/engine?
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