Occasionally, the mass air flow sensor can go lean and set a code P0170 for fuel system lean. This in not an oxygen sensor problem. If there are no vacuum leaks, the mass air flow sensor may need to be replaced. Our technicians remind us to use a factory part because the aftermarket rebuilds are very inconsistent.
Check Engine Light With Code P0170 on Toyota T100
5 people reported this problem
0 people shared problem details
where is knock sensor located
At higher mileages (125,000+) the mass air flow sensor may cause the vehicle to idle rough, run...
what ports do you jump to get diagnostics for 93 Toyota T100
I replaced the air flow sensor
Replaced the starter, air filter and oil change. Truck starts now but when in park and revved u...