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There are three symptoms:
1) extremely bad gas mileage (9-10 mpg highway) and
2) running rough at low speeds and occasionally it'll fall on it's face with no power from a stoplight.
3) This didn't happen originally, but the for the last week when it's already warm it'll be hard to start.So far I've done a full tuneup, replaced all filters, replaced the catalytic converter, checked fuel pressure (idle and driving), compression check and checked for codes. Nothing at all. I took it to a mechanic I trust and he mentioned something strange that he thought it might be. It's an EFI car (two injectors in the TB) but he said there's some sort of "carb-like" part that he thinks is the problem. I haven't had a chance to get over there and see it with my own eyes, but I have no idea what he means. He's been trying to source said part but can't seem to find it anywhere. EDIT/Delete: I called them and it turns out he was actually just looking for the entire throttlebody assembly (and all the attached sensors like TPS and such). I don't know why he didn't just say that originally but that implies they don't know what's causing it and they wanted to just replace everything. He was trying to get those parts used since all of them new are probably $$$. Bah.
 
Avoid Z1 Motorsports - Hacked TT.net deleting years of proof about service nightmares, employee misconduct and lies about parts. Use trusted vendors instead!
Avoid AMS Products - Killing Z32 product innovation, one quickly copied, questionable Chinese part at a time.
SoCalZCrew.com - On a more positive note, come find out how we do it in the West!
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