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Help! A Few Problems

xoGoldyGirl31xo

By xoGoldyGirl31xo,
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xoGoldyGirl31xo Rookie

xoGoldyGirl31xo

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Hi :)

I have a 1989 GTS R31, :/

The problem I have is that both the front and back HICAS motors that sit above the shocks have been removed by the previous owner and the HICAS warning lights are on.

When I bought the car it had a switch installed under the dash which I was told, tricked the HICAS into thinking it was still there, recently i smelt somethng funny in the car and I found the wiring was all burnt out. I removed it and now i'm not sure where to connect the new wiring..... If anyone can give me some advice that would be great......

Secondly my car will not start anymore (since the wiring burnt out), it was running fine... now it just turns over, its got spark, the computer's got power, the fuel pump is working but still no luck. Do you think that the HICAS problem could be related to this? A freind was saying that it might be a possibility but i'm not 100% convinced . I love my car but i'm dissapointed that i'm having so many problems. If any one has any suggestions I'd be so grateful. :P

Thanks

xoGoldyGirl31xo

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Jmaac Proficient

Jmaac

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Posted

Love the R31's, used to have a sexy s3 silhouette.

Whether or not the HICAS lights are on or off the car should start (just a pig to drive without a lockbar). If it happened right after you pulled the wiring out then thats definately your problem. Can you remember where the wires ran to? If the cars cranking over, make sure you have power to the coil - do the dash lights come on when your cranking the engine over? Wiring schematics for the car can be found on www.r31skylineclub.com. If you live on the GC i might be able to give u a hand

blind_elk Grand Master

blind_elk

Posted
Posted
Secondly my car will not start anymore (since the wiring burnt out), it was running fine... now it just turns over, its got spark, the computer's got power, the fuel pump is working but still no luck. Do you think that the HICAS problem could be related to this? A freind was saying that it might be a possibility but i'm not 100% convinced . I love my car but i'm dissapointed that i'm having so many problems. If any one has any suggestions I'd be so grateful. :w00t:

Thanks

xoGoldyGirl31xo

If you have spark and fuel and compression (I'm guessing you have compression - burnt out wiring won't affect that), then the engine should start. Can you hear the injectors "tick ... tick ... tick ..." when you are cranking the engine?
xoGoldyGirl31xo Rookie

xoGoldyGirl31xo

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Posted
Love the R31's, used to have a sexy s3 silhouette.

Whether or not the HICAS lights are on or off the car should start (just a pig to drive without a lockbar). If it happened right after you pulled the wiring out then thats definately your problem. Can you remember where the wires ran to? If the cars cranking over, make sure you have power to the coil - do the dash lights come on when your cranking the engine over? Wiring schematics for the car can be found on www.r31skylineclub.com. If you live on the GC i might be able to give u a hand

Hey sorry it's taken me so long to reply I've been so busy with work, The dash lights do come on and I have power to the coil. Thanks for the link to the R31 site for thw wiring schematics. I don't really wanna waste your time working on my car unless you really want to =P

And yes i hear a tick tick tick when i crank the engine over

xoGoldyGirl31xo Rookie

xoGoldyGirl31xo

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Do the injectors have a signal or is there a crank signal from the CAS.

Best way to check injectsrs is to use a noid light.

Yes the injectors have a signal and there is a crank signal from the CAS, It just won't start.... Does it make much of a difference if its an NA RB20de with the turbo gear (its running turbo computer).

Thanks

Jmaac Proficient

Jmaac

Posted
Posted (edited)

nope she should still run ok (compression ratios just different, weaker g/box, fuel reg? different etc.)

I know u said the fuel pump is working but did u check the voltage and/or fuel pressure? Check the timing also

Even though your getting spark from the CAS it might still be no good. Is the spark regular or irregular? have u checked its internal resistance (think procedure is in the book). Check plug voltages also

Sounds like u may have a bad short in your wiring loom if anything or killed the CAS

Do you know where the wiring was roughly running to under the dash? Was it just hooked to the HICAS light/fusebox?? How many wires etc.????

Edited by Jmaac

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