JeffreyV Posted February 23, 2009 Share Posted February 23, 2009 I wanted to pass along a little info... My check engine light was on and would go off after I drove about 20 minutes. It would stay off, but come back on after about two or three of those short 2 or 3 mile errand runs. I had my mechanic check and he said it was showing lean mixture on the left bank, but he said that he could find nothing wrong. I lived with the light coming on and going off for almost a year. Then I decided to clean the throttle body... that was four weeks ago. The check engine light has not been on since. :) Quote Link to comment Share on other sites More sharing options...
jcrome04 Posted February 23, 2009 Share Posted February 23, 2009 Awesome dude. Cleaning the TB makes a lot bigger difference than a lot of people think! Glad to hear things worked out for you :D Quote Link to comment Share on other sites More sharing options...
eatingupblacktop Posted February 23, 2009 Share Posted February 23, 2009 How dirty was the TB? Quote Link to comment Share on other sites More sharing options...
killerFatty Posted February 24, 2009 Share Posted February 24, 2009 Before TB cleaning. I had very little power at any less than 1/4 throttle (once I was past that I was fine). I pulled off my TB (broke on of the hoses) and saw enough carbon to make the worlds largest diamond, twice lol :D . My friend and I spent an hour just cleaning out the TB and what we could get at the intake manifold. It took a screw drive and a whole can of TB cleaner just for the one Butterfly valve, and another half can in the Intake manifold. I have pics on my phone of before and afters I will upload as soon as I get the memory card thingee. I do have a question about the TB gasket. Mine was crumbling and fell apart upon removal, and I needed my car and couldn't wait two days for one to be ordered. So I used RTV silicone gasket maker stuff and seams to be fine at low throttle, but a WOT I can hear an air vaccum sound that I have never heard before. Could this just mean I missed a spot with the silicone? I didn't want any to go into my intake manifold so I didn't use a huge bead. BTW My throttle response is much better, and she has more power then she had when I bought her. Quote Link to comment Share on other sites More sharing options...
TA in KC Posted February 24, 2009 Share Posted February 24, 2009 Before TB cleaning. I had very little power at any less than 1/4 throttle (once I was past that I was fine). I pulled off my TB (broke on of the hoses) and saw enough carbon to make the worlds largest diamond, twice lol :D . My friend and I spent an hour just cleaning out the TB and what we could get at the intake manifold. It took a screw drive and a whole can of TB cleaner just for the one Butterfly valve, and another half can in the Intake manifold. I have pics on my phone of before and afters I will upload as soon as I get the memory card thingee. I do have a question about the TB gasket. Mine was crumbling and fell apart upon removal, and I needed my car and couldn't wait two days for one to be ordered. So I used RTV silicone gasket maker stuff and seams to be fine at low throttle, but a WOT I can hear an air vaccum sound that I have never heard before. Could this just mean I missed a spot with the silicone? I didn't want any to go into my intake manifold so I didn't use a huge bead. BTW My throttle response is much better, and she has more power then she had when I bought her. Use the regular OEM gasket. Last time I needed one, Superior Lexus had it in stock and I didn't have to wait for it to be ordered. The cost is around $5.00. For that price, it is much easier than using the gasket maker stuff anyway. Quote Link to comment Share on other sites More sharing options...
killerFatty Posted February 24, 2009 Share Posted February 24, 2009 Thanks Thomas, I really dont want to take out my TB again just to put in a gasket, but next time I need to I will. Quote Link to comment Share on other sites More sharing options...
JeffreyV Posted February 25, 2009 Author Share Posted February 25, 2009 How dirty was the TB? The entire surface was coated with black deposits. I used a toothbrush and throttle body cleaner. Quote Link to comment Share on other sites More sharing options...
killerFatty Posted February 26, 2009 Share Posted February 26, 2009 here is my before and after pics Quote Link to comment Share on other sites More sharing options...
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