2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

S5 engine wireing harness help

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Old Jul 16, 2008 | 08:37 PM
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S5 engine wireing harness help

ok i did some searching on my lunch break today but did not find any good info mind you i was working with a 400mhz computer that loaded pages slow so i did not look at as many pages as i would of liked to.
but the problem is this, i removed my wireing harness from my engine last dec now i can remember witch wires go ware and, the big problem is whitch injectors connectors go were? dose any one a pics of this or a good wireing diagram,i used to have a good book for the wireing on that car but i gave it to my friend when i sold him my s4 thinking i would never use it any more. any help would be cool thanks
i hope my spelling wont stop ppl from helping me. as it has in the past :P
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Old Jul 17, 2008 | 08:42 AM
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for a wiring diagram check out the FSM (factory service manual) for the year you got,you can find online versions in the FAQ.
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Old Jul 17, 2008 | 10:20 AM
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Originally Posted by immanuel__7
i hope my spelling wont stop ppl from helping me. as it has in the past :P
sorry i just found that funny. Puting the wiring harness on should be pretty straight forward. Most of the plugs can only fit one way...if you put the harness in the same place where it was positioned before you took it off mostly everything should line up right. If you manage to do this...the injector closest to the firewall should have the longer plug and you shouldnt be able to put the wrong one on because it wont reach. Sorry, thats the best I can tell you without saying to look at wiring diagrams. All i did was take a look at an exploded view of the harness in a haynes manual which shows how the harness lays on the motor etc..

Last edited by Elbi; Jul 17, 2008 at 10:28 AM.
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Old Jul 24, 2008 | 08:06 PM
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ya some ppl bashed my spellinhg skill then say " if you could type better we could help better" lol, well i did install the injecters wires i figure out with the wireing diagram but now the car wonnt start, i have correct timing it will fire up on a slerp of eather (i know its bad but just to see it it will start up and it did!) so next step plugs do get wet, now the gas is kind of old so im dumping the gas this week end, and il see if that helps but im woudering if i did not plug the injectors in back wards as in i have the front ones on the back injectors. my current setu is the wireing harness going to the maf is connected to the front injectors, can you guys have a look and see if that long harness comes out from the back of the intake or the front of the intake? and if that harness is connected to front or rear injectors thanks for your help
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Old Jul 27, 2008 | 10:55 PM
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ok so looks like i did hook up all the wires ok, i had a friend come over with his 12 running injectors and we did some trouble shooting and found that my grounds where not all that good so we fixed that up. drained all the old gas out of the tank and used some new 87 octane mixed 100:1 and of she went i think it helped when we pulled the injectors out and dumped a hole load of gas in the intake tho
but thanks for all your help
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