|
2010 LLT no start, Fuel?
(repost, mustve posted in wrong forum)
Just picked this 2010 RS this past December, only been driving it for like 3 and a half months- Love the thing but currently hitting a wall.
The car would get the CEL every few days for a day or two at a time then it would go away or come back a day or two after clearing it. It always was these
P0420
P0089
Searching around made me think I dont have to worry to much about this til emissions rolls around which wont be for a while.
Driving to ihop with the lady she started misfiring(car not the lady) which gradually got worse over the next few minutes. Was stuck in traffic at the time so I limped it to the parking lot which by then must've been running on 3 cylinders. I saw lighter colored smoke coming out of the back at some point and it reeked of gas/sulfur. She started once but very poorly immediately after it parked, and then after a half hour when we were done eating it wouldn't start at all(didn't have reader on me unfortunately).
Had the car towed to home where it pulled these codes
P0420 - Catalyst system efficiency Below threshold bank 1
P0300 - Random/multiple misfire detected
P0302 - Cylinder 2 misfire detected
P0089 - Fuel pressure regulator A performance
P0300 - Random/multiple cylinder misfire detected
P0302 - Cylinder 2 misfire detected
P0089 - fuel pressure regulator A performance
P0304 - cylinder 4 misfire detected
P014A - 02 sensor delayed response - Rich to lean bank 3 sensor 2
P0306 - Cylinder 6 misfire detected
P0420 - Catalyst system efficiency below threshold bank 1
P0089 - Fuel pressure regulator A performance
P0300 - random/multiple misfire detected
P0302 - cylinder 2 misfire detected
I was terrified because its a 3.6 that it was the timing chain. I had a replacement one Id been sitting on putting in, so I pulled it all apart and thankfully found the chains in good condition so I know it wasnt timing related. I threw the new timing chains on (following the procedure and video step by step) and am confident I put it back together correctly.
I changed the fuel injection pressure sensor on the 2 4 6 side fuel rail and have a brass sensor for near the fuel tank that I have yet to put on as well as throw on a MACE engineering 25mm intake riser/insulator. Still no start, charged the battery a bit since it was low and still no start. It now throws these codes
P0420
P0122 Throttle/Pedal position sensor/Switch A circuit Low
P0223 Throttle/Pedal position sensor /Switch B Circuit High
P0300
P0302
P0193 Fuel Rail Pressure sensor circuit high bank 1
P0089
p0122 again
P0223 again
P0300
P0302
P0193 again
P0089
P0304
P014A 02 Sensor delayed response - Rich to lean bank 2 sensor 2
P0306
P0420
P0089
P0300
P0302
Taking the fuel linkage lines to the rails off and turning the key I do get gas shooting out briefly, idk if that means high pressure pump is good or bad though.
Im using my spare car in the meantime but Im burning all my free time trying to fix this and I could use some help if anyone else has run into this before.
|