'07 4.7 throwing codes (1 Viewer)

[russde]

2007 GX470, 80k miles, no service history until I boufht it last year. I did the tbelt, water pump, spark plugs based on age 4 k miles ago.
Cleared similar codes (but not all at the same time) a month or so back, replaced the gas cap...so that part's done.
Drove fine this morning, early afternoon the idle was rough, a miss, but not horrible.
Later there was a definite stumble off idle with moderate throttle and then the lights on the dash lit up. I pulled the codes when I got home, P0172 and 0175 were active and
P0300, P0306, P0308, P0172, P0175, P0101 were all 'pending'.

What to check first?
TIA,
Russ

 

[gnob]

It looks to me like this is a MAF caused issue.
I would start by cleaning the MAF.
The too rich condition is likely causing the misfires.
The p0101 is a code related directly to MAF voltage tolerance.

 

[russde]

I cleared the codes, and drove it as normal the rest of the week, they haven't returned yet.
I'll clean the MAF this weekend and see what happens
Thanks