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hey all,

Recently got my33 gtst back from a new motor being put in.

Car had exhaust leaks and vacum leaks but i got them fixed and the car now boosts up properley but seems to flaten out and die at 5000rpm. especially in third gear.

Now a new problem is accuring. It had a fluctuating idle between 800rpm and 1100rpm for the last couple of weeks, but now i noticed it sits on 1200rpm sometimes even 1500rpm!? wtf. This car is pissing me off!

Electrical? Someone help please!

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https://www.sau.com.au/forums/topic/111469-weird-idle-problems/
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coilpacks... replace or tap them up

i had a very similar problem, would get flat spot above 5000rpm when running higher boost. and my idle would be all over the place sometimes it would be normal other times it stay at 1500rpm then others it would jump up and down.

got new coilpacks and i havnt have the problem since

coil packs wont really affect idle ... they will affect revs after 5000 though .... i would say u have 2 different problems.....

i didnt change anything but the coilpacks.. and it fix my idle

but the more common problem with the coilpacks is the flat spots above 5000rpm i belived

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