Thread: Had two problems start up today..

First one doesn't seem like a big issue, but is probably related to the second...

#1, At warm idle, if I rev it a bit (even to 1500rpm) and let off, it felt like it hit a dead zone when the idle dropped back down, almost like it missed or something.

#2, between 3k-3500 it felt very hesitant, she climbs right up to 3k in full force, and then feels like its either missing or bogging a bit to 3500, and then slowly returns normal after that up to 5k (highest I had gone today)

It has never shown any of these problems before, and the only thing that I can think of that has changed was adding the MAF adapter plate for my filter, rather than just having the filter shoved in. I checked the MAF and IAT connections, and bother were fine. Filter also was secured well to the adapter, and adapter is on the maf housing nice and tight... don't think that plate could have anything to do with it...

I'm almost thinking TPS, but before I drop a ton of money replacing it, does anyone have any other ideas on what I should check out?

Also it did feel a bit weaker than normal in high RPMs. Only thing I can think of is I did take off like a bat out of hell last night from a cold start because I got pissed off leaving work. Probably didn't rev over 5k, and it was only in first gear for the stretch of my work parking lot (50ft?), but it was a cold start at like 15*F. Don't think that caused any damage, but maybe it is related...?

i would say its maf related because of being hesitant around 2.5-3k thats usually maf problems but im no expert

I doubt its the tps, there's a way you can test it by using a volt meter and testing what the wires read,
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I had a problem with my maf where the wire inside broke and was only making connection some of the time, I had problems similar to yours, try shaking the maf (if its not your only car) while the car is running (mine broke completely when I did that), maybe you could put a voltmeter on it and test it that way (don't remember how at the moment)

make sure the MAF adapter is on the right way with the half moon area in the right place. If not this will cause bad air flow to not to metered.

explain?