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  1. Rough idle when engine hot and hard starting????

    Repair & Maintenance
    Hi guys, My first post in these forums, been lingering for a while and need some help. My celica idles a bit rough when the rpms get to around 750rpm when warmed up. Also sometimes easy to stall. Drives fine. Also a little rough/hard starting when engines hot, sometimes a 1 second delay in...
  2. Testing IACV (electrical & mechanical)

    Repair & Maintenance
    In trying to troubleshoot an IACV problem (, I spent a huge amount of time trying to figure out how it works and how to test it. I am hoping to collect some info for a possible sticky thread to make this process easier...
  3. Idling problem--- because of the ac?

    Repair & Maintenance
    So my A/C works but it takes a while for it to get cold so I decided to try the A/c pro. After doing so, my engine takes a while to warm up to the middle position and if I use my AC, my engine's thermostat would actually drop down 1 bar so if I'm at a stop, my rpm would rev up and down. Car...
  4. Throtte Position Sensor driving me crazy! HELP

    Repair & Maintenance
    OK so I posted here a few weeks ago describing some issues I have been having with my 2000 Celica GT Auto. Poor acceleration/bogging down, High idle at cold start 2k+ and low idle once warmed up. The car just isn't acting normal at all. Ive replaced many many things including: -MAF sensor...
  5. 1346 and 1349, high idle

    Repair & Maintenance
    Hi guy, im having same problem for some time now. I have a GTS, year 2000 and it keeps acting odd. Idle is high when car is cold, about 2k rpm (but its summer now, so its still high) and when it warm - about 1600 rpm, when revved up to 2k rpm it drops to normal 900-950 but rises in a few seconds...
  6. HELP! Exhaust dripping gas and white smoke

    Repair & Maintenance
    My car has been idling really rough lately so I decided to do some cleaning. I took off the throttle body and cleaned it with throttle body cleaner (the whole inside was black) and then dried it off. I put it back in the car, started it up and now my exhaust is putting out a HUGE cloud of white...
  7. Do I need to replace my A/C compressor?

    Repair & Maintenance
    So my 2000 GT has had this problem since I bought it 2 years ago. I have had the engine swapped but the problem is still there and didn't get any better or any worse after the swap. When the a/c is off the car runs very smooth but when I turn the a/c on it starts to rattle and vibrate. I took...
  8. Idle problem

    Repair & Maintenance
    Hi guys! I have a 2002 Celica GTS, not DBW, with idle problem and I can't solve it by myself. My car idles arround 2200 rpm when engine is cold and 1700 when hot. Worst of all my idle start hunting at the stop light arround 800-2500. This is only the problem, car has good power and strong lift...
  9. Help with idle/IAC issue, P0505!

    Repair & Maintenance
    I have a 2000 Celica GTS that's had a crazy idle for a while now. It usually sits around 2000 RPM. It was throwing a P0505 error code, and another code which I can't remember, but if I remember right also pointed to idle system malfunction. I tried taking apart the IACV and cleaning it our...