2003 Lexus ES300 witht he 3.0 1MZFE motor.
Has noticable hesitation upon mid throttle acceleration. NO CODES
I noticed that the air intake boots after the MAF were dry rotted and torn. I replaced those this weekend thinking that was the problem.
Also cleaned out the throttle body as I had everything off. Put it all back together and test drove.
It was a slight improvement, but not enough. The hesitation is still there. When I want to put the throttle about midway down for an extra boost going uphill or on the highway, it will "lurch". power band goes down, then up, down then up. As if its being choked of air every half second.
When flooring it, the car will downshift and take off like a scared ape. Babying the throttle in town will not make the problem happen either.
Its always at the mid throttle point, when you need just a little extra oomph.
I ran my Driver scan app and there are no codes, and no check engine light.
The MAF g/s readings are in their respective normal range at idle and at revving to 2500-3000 RPM's. Those were the only parameters I could check.
So as of right now I'm totally stumped. Without a code being thrown I'm unsure where to look next. I just have a feeling its something basic thats not showing itself.
Looking for any and all suggestions.
Has noticable hesitation upon mid throttle acceleration. NO CODES
I noticed that the air intake boots after the MAF were dry rotted and torn. I replaced those this weekend thinking that was the problem.
Also cleaned out the throttle body as I had everything off. Put it all back together and test drove.
It was a slight improvement, but not enough. The hesitation is still there. When I want to put the throttle about midway down for an extra boost going uphill or on the highway, it will "lurch". power band goes down, then up, down then up. As if its being choked of air every half second.
When flooring it, the car will downshift and take off like a scared ape. Babying the throttle in town will not make the problem happen either.
Its always at the mid throttle point, when you need just a little extra oomph.
I ran my Driver scan app and there are no codes, and no check engine light.
The MAF g/s readings are in their respective normal range at idle and at revving to 2500-3000 RPM's. Those were the only parameters I could check.
So as of right now I'm totally stumped. Without a code being thrown I'm unsure where to look next. I just have a feeling its something basic thats not showing itself.
Looking for any and all suggestions.