PerceivedShift
Autocross Champion
- Location
- Virginia
Not a question, but this summer I kinda want an intercooler sprayer, because Im a child.
replace o2 sensorCar has been running rough lately. CEL on
EQT stage 2. Have run this for most of the year with the rear O2 sensor unplugged, with only an occasional CEL from a WOT event, which never caused the car to run badly. Reset the code and it's good to go. These codes however, keep coming back.
Any ideas?
P0138/509C
O2 sensor bank 1 Sensor 2 high voltage
P0141/50A0
O2 sensor heater circ. bank 1 sensor 2 malfunction
P2096/3A6C
Post catalyst fuel trim system bank 1 too lean
P2271/49F6
O2 sensor stuck rich bank 1 sensor 2
That is the plan. The downstream sensor, correct?replace o2 sensor
yep, sensor 2/the one you plugged back in. "post catalyst" is what you'd think.That is the plan. The downstream sensor, correct?
if you mean the shim it'll probably be noisy as hell if you don't use it. brake lube should help some thoIs it 100% necessary to use the backing plates that come on brake pads? On one of mine, the backing plate clips no longer secure themselves to the pad.
Maybe it got carbon fouled from being unplugged that long?yep, sensor 2/the one you plugged back in. "post catalyst" is what you'd think.
probably got fouled from his rich-ass EQT tuneMaybe it got carbon fouled from being unplugged that long?
What’s the word?What the…..
Cars been running fine to include this morning. Leaving from a stoplight, car went three-quarter full boost, then boost dropped down and banged 4-5 psi, had stutter, random -17 knock registered on AP, and EPC light came on.
I drove home the rest of the way, keeping it under five psi boost, and it drove fine….no knock, no studdering and no issues at other stoplights.
OBDeleven shows three engine faults but nothing specific. Going to use a generic OBD scanner later, but SEEMED like a fuel cut…. Could that be hpfp related? Bought it used so it’s the only thing that’s changed recently
after doing a log and talking with Colby @PowerDemon and Drew (JerseyDrew) about it, my rail pressure drops as it hits high torque...essentially when I'm requesting boost more than 5-10 psi......-5 to -13 knock is being seen across the cylinders and disappears when I let off boost. Everything points to the used hpfp I picked up (only 40k). New hpfp arriving today, installing tomorrow and will relog tomorrow as well.What’s the word?
These damn HPFP's... getting one that lasts without some sort of issues seems rare. Hopefully, that solves it.after doing a log and talking with Colby @PowerDemon and Drew (JerseyDrew) about it, my rail pressure drops as it hits high torque...essentially when I'm requesting boost more than 5-10 psi......-5 to -13 knock is being seen across the cylinders and disappears when I let off boost. Everything points to the used hpfp I picked up (only 40k). New hpfp arriving today, installing tomorrow and will relog tomorrow as well.
no joke. Staying off boost is so.....not rightThese damn HPFP's... getting one that lasts without some sort of issues seems rare. Hopefully, that solves it.