maf issues?

[5.SLOW]

My car a/f is jumping everywhere is the maf sensor only thing could cause this issues? Thanks

This is on my 07 with cams

 

[stkjock]

no, O2 sensors could be bad

 

[5.SLOW]

Wouldn't it throw a code

 

[lskiller]

Not necessarily. Does it do it at WOT, too or just cruise? If it's just cruise/idle I'd check all wiring and if that looks good, replace the front 02 sensors.

 

[mach828]

What do the short term fuel trims look like when you datalog? Does it do it immediately after start up or does it take 60 seconds or so before it happens?

 

[5.SLOW]

Well put new 02 sensor in and still does it and wiring look ok

It does it sometimes bad at first then it might settle down then act up again. It weird and short trim don't look bad.

 

[5.SLOW]

Found out today that my maf housing is not a 95mm it a 70mm