MAF , map ? confused , hot lean prob.

[jtgh]

2000 esteem 1.6L

i see the map on my OBD2 , it is flat lined hot ( moves ok cold)
i see the MAF on the OBD2 scanner, it moves from .4 to 1.1/ min 1k to 3k rpm.
where is the maf , i can not find it.

car starts cold runs ok.
soon as its warm it dies.
all other sensors look perfect.
180psi compression all 4.
34psi fuel rail.

stalls hot, and acts very lean even though Closed loop is active.

does anyone know if this EFI drops MAP and switch to MAF hot as some cars do?

thanks for any clues.

[Isuzuzuki man]

I didn't think it had a MAP and a MAF.

[jtgh]

you are correct, we have examined every wire to every sensor, as you know some have a MAF hidden in TB. (not on this one)


the OBD2 scan tool (elm based) is showing MAF, but we think it is
calculated air flow and not measured air flow.

we have a raw data logger to prove that and may later, when we find the drain hole in this swamp.

some air leaks in to induction,causing IAC to rail.

thanks for helping.