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Ls startup problem obd0 ecu code 5

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Old 01-07-2011, 07:35 PM
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Question Ls startup problem obd0 ecu code 5

Ok tr im back again for some advice and help first off I have a 88 ef si obd0. I finished my swap and ran fine for the first day out until it just shut off on me after a 15min drive. couldn't get it to turn back on until the motor was completely cold so I drove it back and barely made it .and now when I try to get it to turn on I have to hold on the gas for it to cut on but when I let go of the gas it just dies and keep getting engine code 5 which I know it stands for map. can someone tell me what could be the problem could be? pics could be taken if needed its my only car i need running asap
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Last edited by bigpudge; 01-08-2011 at 04:38 AM.
Old 01-08-2011, 04:57 AM
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Bump cause I really need help any help is appreciated
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Old 01-08-2011, 05:53 AM
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I have you attempted to clear the code yet? Swapped out the map sensor for a known working one?
Old 01-08-2011, 04:07 PM
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yes i have attempted 2 clear the code and swaped out the map sensor from my boys eg
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Old 01-08-2011, 05:12 PM
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What color are the three wires going to MAP?
Any vacuum leak or bad hose?
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Old 01-08-2011, 06:17 PM
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I knew you will come to the rescue boostedracerdad lol you had help me before I can send you pics if u want but who ever had the car before me had cut the map wires but the colors going to the map are 1)green/white 2) blue/red 3) red/green but now its giving me another code the computer blinks with 1 long pause and 7 blinks after that what could that be?
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Old 01-08-2011, 08:09 PM
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Pretty sure you have the TPS and Map sensor plugs backwards. I bet you are throwing code 7 and code 5. Try swapping and resetting Ecu.
When the swap was done was the two outer TPS wires swapped?
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Old 01-09-2011, 05:38 AM
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Old 01-09-2011, 09:47 AM
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Yea I was getting to the thought of the plugs being switched but I wanted to clear the obvious first.
Old 01-09-2011, 12:29 PM
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Yeah they where wrong at the first start up but was corrected but its not throwing code seven now
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