lacelane

sometimes rough idle. Car really spudders when pressing the gas lightly, but seems ok when pressing the gas harder. MPG is pretty awful. 16 mpg if lucky on the streets, 21mpg on the highway. I checked to see if the 02 sensors are broken. They seem okay. I recorded my live driving and data here if it means anything to you all reading. Here is my data from car scanner:


I changed my spark plugs and coils. Used the mobil1 0w-40 all the time. Any help would be greatly appreciated.

Here is my reading from my generic obd2 reader:

P2038
Raw code: 2038
ECU: 01
Status: Test has not been completed, Validated and stored in non volatile memory
OBDII: Reductant injection air pressure sensor - range/performance problem
============2==============
P201B
Raw code: 201B
ECU: 01
Status: Validated and stored in non volatile memory, Validated fault has been present during this drive cycle
OBDII: Intake manifold air control actuator, bank 1 - supply voltage low
============3==============
P201C
Raw code: 201C
ECU: 01
Status: Test has not been completed, Validated and stored in non volatile memory, Validated fault has been present during this drive cycle
OBDII: Intake manifold air control actuator, bank 2 - supply voltage low
============4==============
P2029
Raw code: 2029
ECU: 01
Status: Validated and stored in non volatile memory, Validated fault has been present during this drive cycle
OBDII: Auxiliary heater (fuel fired) - system disabled
============5==============
P0300
Raw code: 0300
ECU: 01
Status: Pending
OBDII: Random/multiple cylinder(s) - misfire detected
============6==============
P0171
Raw code: 0171
ECU: 01
Status: Pending
OBDII: System too lean, bank 1
============7==============
P0302
Raw code: 0302
ECU: 01
Status: Confirmed
OBDII: Cylinder 2 - misfire detected
============8==============
P0303
Raw code: 0303
ECU: 01
Status: Confirmed
OBDII: Cylinder 3 - misfire detected
============9==============
P0301
Raw code: 0301
ECU: 01
Status: Confirmed
OBDII: Cylinder 1 - misfire detected
============10==============
P0300
Raw code: 0300
ECU: 01
Status: Confirmed
OBDII: Random/multiple cylinder(s) - misfire detected
============11==============
P0171
Raw code: 0171
ECU: 01
Status: Confirmed
OBDII: System too lean, bank 1

lacelane

Figured it out, it was my MAF the whole time. Had it replaced with a cheap 20 dollar ebay, that's what was causing all those problems. Replaced it with a 150 dollar autozone part, that did the trick.

slammer111

Glad you figured it out. Never ever buy functional components off sketchy places such as eBay or Amazon. Way too many fakes and inferior parts out there.