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Ivan Teoh
Tinkerer
Victoria
Soarer 1JZ

Posts: 61
Reg: 07-2008

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Friday, August 07, 2009 - 01:47 am, by:  Ivan Teoh (Archangel) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey guys, I have a 1JZ TT Soarer and I'm currently having idling problems. It really weird and have no idea what is wrong with it. Starts out like this.

I start the car and it idles perfectly fine at around 1000rpm. After driving it for a while and engine running at operating temperature, the idling drops really low, around 250-500rpm. This happens randomly.

The rpm will go so low that the engine will just die off sometimes and when I immediately start the car right after that, the engine idling goes back to normal.

Sometimes, when the idling goes too low, what I do to raise the idle back to normal is to switch off the A/C for a few seconds and switch it on again, then the idle goes back to normal.

I really have no idea what is wrong with my car. Anyone here having/had the same problem before?
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder

Posts: 5293
Reg: 03-2006

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Friday, August 07, 2009 - 09:55 am, by:  Daniel Clarke (Dieseltrain) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Search for Idle control Solenoid or ISCV . Probably full of muck and needs removing and cleaning out. Also try an Ecu reset and see if that helps .
David Tra
DieHard
qld
TT

Posts: 986
Reg: 11-2007

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Friday, August 07, 2009 - 12:43 pm, by:  David Tra (Bookie) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

could be fuel pump ecu?

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