i got my vvti 1jz running and i have been doing some searching but haven't found any conclusive answers to my dilemma.
my 1jz starts up super smooth and idles nicely when cold, but as it warms up it starts to run richer and richer and i am guessing as a result the idle starts to stumble and when it is warm it will barely idle, just put put put and if i give it gas and let it come back down to idle it just dies usually.
anyway i unplugged the MAF and it seemed to idle smoother, and died when i plugged it back in. i actually took video of that.. stupid nexus 5 and ****ty auto focus in video mode >_<
anyway after i ran it again with the maf unplugged it was back to its ****ty idling ways so i am not confident that was exactly the problem, but during my swap i did drop the MAF once so maybe i fubared it.
rather than just throw parts at it i'd like to hear from others who had their cars run richer and richer as it warmed up.
i checked the coolant temp sensor and its about 1.6K when cold and drops down when it warms up, half way warm was about .7K, which is in line.
also, no ECU codes, just deep codes 47 and 78 for sub-TPS and fuel pump ecu.
cheers for input