Mechanics

MY CAR DOESNT IDLE WHEN YOU START IN THE MORNING SO ENGINE SHAKES TILL IT HEATS UP THEN IT STOPS, SECONDLY WHEN I TURN ON THE A/C THE RPM GOES DOWN

2000 Lexus GS 300 • 124,000 miles

Cars has undergone alot of changes with new wiring etc etf
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Martinkodua
February 14, 2012.



Hello Low, is it possible to make the schematics bigger? The font are too small I cant seem to read it well and same as my mechanic. Thank you

Tiny
Martinkodua
Sep 19, 2012.
Those are in PDF mode so you should be able to enlarge the view. Sorry I don't know how to make them larger when converting from Onenote to Acrobat and if you know how, tell me and I will see what I can do.

KHLow2008
Sep 19, 2012.
Hi, am getting so frustrated with this car now, I really dont know what to do anymore. I have just been told by a mechanic that the throttle body needs to be programmed to control the idle speed. Is this true? If so please let me know and if you know how to do it let me also know. This are the recent codes I have P0161, P0130, P0133, P0150 AND P0153

Tiny
Martinkodua
Sep 28, 2012.
P0130, P0133, P0150, P0153 and P0161 are all faults with the HO2S circuits. Either you have a fault with the wirings or the sensors are not working.

None of the codes are related to the throttle controls which do not need any programming. The computer would relearn after some running and the O2 sensor codes are not going to make that occur. You need to get them resolved first.

If you had removed the TPS or meddled with the throttle control stop screws, recalibration would be necessary.

KHLow2008
Sep 28, 2012.
How do I recalibrate it?

Tiny
Martinkodua
Sep 28, 2012.
There are many things that needs to be taken into considerations but I would suggest getting the trouble codes rectified first. No point in going on a wild goose chase.

KHLow2008
Sep 28, 2012.
The reason why I was asking about recalibrating the Throttle is because someone has tampered with it and another mechanic is trying to charge me about $150 to calibrate it for me

Tiny
Martinkodua
Sep 28, 2012.
Don't worry about that first. Get the O2 codes resolved first.

KHLow2008
Sep 28, 2012.
I still cant enlarge the schematics you sent to me, you said they in one note format, please send them to me via the one note format and let me convert it here and I hope I can increase the font. I have someone coming in tomorrow to check on the O2 sensors for me. Thank you very much

Tiny
Martinkodua
Sep 28, 2012.
I have sent the files to you, hope they come out better. I thought pdf files can be enlarged?

KHLow2008
Sep 28, 2012.
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