gcam77

My 1998 Toyota Aristo TT (MKII) has been a very low idle sometimes and causes the AC to cut out and /or accesory belt to squeal. The car is idling at around 400 rpm. Sometimes it will start at a higher idle, around 600-700 rpm, then goes down to 300 or less rpm. If I give it a constant rev of about 800 rpm it runs ok.

Does anyone know how can I adjust the idle or what exactly do i need to do to fix this issue?

DEEBOGS

In for results too. My 99 gs is stock and also had low idle issues but once i drive it for about 15 min the rpm goes up to about 550 rpm

jcat_350

sounds like you need a tune. The car should idle anywhere from 650-900rpm. In any other low idle case, I'd check fuel and air before anything else.

DEEBOGS

Air and fuel? So check the throttle body and fuel pump?

99 GS3

iTrader: (14)

Have you replaced the pcv valve or cleaned the maf since you've had the car?? You car is stock other than the hks ssqv right? Make sure that thing isn't leaking and that you have no other intercooler pipes or couplers leaking as well.

Check your tps voltage as well, there are some threads here on adjusting it. You could temporarily adjust the throttle cable barrel a little tighter to hold it up some around 700-800 or so just to see if all problems go away for a couple days of driving before you try to adjust the tps voltage.

celm

iTrader: (1)

gcam lets see pics of the bad boy!

gcam77

Here you go...