Originally Posted by
tom wu
New mechanic says it's the throttle body, not the tps. Can someone tell me the part# and or suggest where to buy? Thank you
Needswings.com is where I would go. You need no part number with Rob, he knows what to sell you.
I am surprised Matt and Brian both struck out, that does not happen often.
Personally, I am not convinced what is going on with the car - I'd want to see it, drive it and think about it. Many times, we can diagnose a car over the internet, but sometimes, we run up against one like yours. And again, the fact that Matt and Brian struck out, really bothers me.
EDIT: The more I think about this, the more I get this picture: AT low throttle settings, life is good. At more 'open' throttle settings, things tend to go haywire. NOW< when my fuel pressure was dying, I would get EXACLTY that, see, at low throttle positions, little fuel is needed, but at higher settings, the injectors stay open longer, if the fuel system is not capable of maintaining pressure at higher flows, you will get you are are getting.
IF it was crank or cam sensor, the throttle position would not matter all that much. It appears the car has a hard time maintaining fuel/air mixture ratio at high throttle settings, again, this is still a guess. But anyway, this would be attributable to problems with fuel delivery or the MAF or throttle body not acting right.
I am reminded of a member here who had an odd trouble some years ago, some sort of issue arose in the gas tank where the fuel pickup was compromised, the fuel pump was having issues maintaining pressure when more fuel was demanded because of this. This would be obvious IF you could monitor fuel pressure while driving the car - impossible with my gauge with it's 28 inch hose. This is a RARE occurrence but something to consider.
Other than that, I keep going back to MAF/TB. If you had a code reader capable of live data (my BOSCH1100 does that), you could monitor O2 levels, throttle position, etc. while driving and you might see some parameter jump that gives a clue as to what is going on The fact that the car 'resets' if you shut it off and start it again also has my attention - I think we are all overlooking SOMETHING I just dont know what. And the fact that Matt and Brian failed shows you how rare your issue is, I still cant get over that they both struck out.