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Need Help Diagnosing A Problem.

Winny69r

By Winny69r,
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Winny69r Collaborator

Winny69r

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Hey guys. The other day I took my whole dash out of my r32 GTR to replace with one with no bubble in it.

When I put it all back together everything worked but the speedo which I can fix.

The problem is now all of a sudden the car is running very rough like it has a miss and I took it for a drive to see if it would clear up then power steering cut out and the hicas light came on.

Can any of this be my doing from pulling the dash out? It all just seems too coincidental that it drove fine before I parked it and removed dash (which I'm now highly regretting). Need to know what this could be as its due for a pink slip

:( not my week.

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jiffo Mentor

jiffo

Posted
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You have two problems.

The HICAS and power steer should clear up as soon as you fix the speedo.

They both need input from the sender on the back of the speedo, the power steer will go very heavy without speedo signal input.

Your miss is probably poor contact at the big blue ecu plug.

With age this plug develops a bend therefore the end pins often don't make contact.

I always help the plug to fully engage its end pins as I tighten the centre bolt.

Seems to be worse with the PFC contacts for some reason, car runs like a Subi.

Try pushing in the plug with the engine going, you'll soon tell if that's the fault.

StevenCJR31 Veteran

StevenCJR31

Posted
Posted

next time cover the bubble with a dash mat :-)

jiffo is quite correct, the ecu plug bends like a banana, doesnt help when dopey auto electricians overtighten it and distorts it even more

Winny69r Collaborator

Winny69r

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Oh my god jiffo you could be a massive lifesaver that makes a lot of sense. I've been stressing so bad about this not even being able to sleep cause i have a pink slip due very soon.Thank you so much for your comment ill test it out tomorrow. Thank you thank you thank you :)

Winny69r Collaborator

Winny69r

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Steven I think I was the dopey dogey fix it man in this one. As soon as the dash was out I thought to myself "my god what have a done" lol. Tho was very happy everything worked when I put it back together other than speedo and didn't miss a screw hahaha

jjman Mentor

jjman

Posted
Posted (edited)

eeeeeeverybody who has a skyline has been at that point.

haha. I threw 5k at a HKS turbo, nismo injectors, a computer n tune.

2 days later i blew a boost pipe. (big bang under boost/WOT then it runs rough as guts with smoke coming out the back).

Thought it was f*kd, drove home, cracked a bottle of 15yr old whiskey and contemplated exactly the same as you.

About 4 glasses in my brain threw up an old thing I'd read on SAU about blowing boost pipes and the symptoms.

by the 5th glass i had found the pipe, fixed, n was good to go again (committed to skylines, not driving right away)

Was even thinking erh ill just sell the car really cheap and cut losses. Made me hate skylines for a short time haha WHAT WAS I THINKING! :b

Edited by jjman
Winny69r Collaborator

Winny69r

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Haha very funny. Hey one other thing while I'm here I had something similar. Took car to the drags and had a pop noise. Has been blowing a bit of smoke on and off for a while now. Had valve stem seals replaced at a large cost then still no better. Think it could be something similar? I have a catch can but there is a bit of oil in the Intercooler piping. Very odd.

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