Hey all!
As the title says, my engine hits higher than usual rpm’s on start. Doesn’t matter if it’s cold or not. On average it peaks around 2k-2200 for about one to two seconds then falls back down to the 600/800 range. My air intake hose (from MAF housing to throttle body) has a huge crack… almost completely severs, which I have sealed up I think about as well as anyone could.
I guess my question is: would that be enough to be the causative agent here?… OR should I start checking for other vacuum leaks/a dirty MAF sensor/injector gumming?
Possibly related, but I’ve also been pretty regularly throwing a PO171 code (running too lean). I’d say every 30-40 miles after reset it pops back on, almost always while under decent load.
Then there’s the PO420… which I’m almost certain is due to a couple of exhaust leaks I’ve noticed in the past few weeks.
Thanks a ton y’all!
As the title says, my engine hits higher than usual rpm’s on start. Doesn’t matter if it’s cold or not. On average it peaks around 2k-2200 for about one to two seconds then falls back down to the 600/800 range. My air intake hose (from MAF housing to throttle body) has a huge crack… almost completely severs, which I have sealed up I think about as well as anyone could.
I guess my question is: would that be enough to be the causative agent here?… OR should I start checking for other vacuum leaks/a dirty MAF sensor/injector gumming?
Possibly related, but I’ve also been pretty regularly throwing a PO171 code (running too lean). I’d say every 30-40 miles after reset it pops back on, almost always while under decent load.
Then there’s the PO420… which I’m almost certain is due to a couple of exhaust leaks I’ve noticed in the past few weeks.
Thanks a ton y’all!