I've had problems with my performance my Mustang for awhile now, I posted this in an old thread because I didn't know how to create a new one. Long story short, my car is bogged down upon acceleration. The power and pick up is not pure, or a clean horsepower if that makes sense. It's tainted, I can feel it through the gas pedal as weird as that sounds. If I drive my mom's Durango, the difference in throttle response/acceleration is a clear difference as far as comparing that part alone to mine. I got codes doing with the O2 sensors being bad, as well as the EVAP purge canister. So in turn I did the following.Cleaned the EGR valve, and it works. Took the throttle body, and throttle body plenum off and cleaned it. Replaced the fuel filter. Has new spark plugs. Also installed a 70mm throttle body, and a 86mm MAF sensor. Not that it was suppose to fix anything, but I had it on the way at any point, and plan on getting it tuned for these mods; Keep in mind, this bogging issue was before I did ANYTHING to the car with Exhaust, throttle body, MAF. I've run fuel injector cleaner in the car a few times now, my dad also cleaned the injectors themselves a little while back. I also went ahead and replaced both O2 sensors on upstreams. The downstreams, I put eliminators on them (MIL Eliminators, suppose to kill the code from not having any CATS, running O/R H-pipe). Went and got the codes scanned after doing that, and I still got faulty O2 codes as well as EVAP code, purge canister?
Codes listed :
P0141 HO2S-12 (Bank 1 sensor 2) Heater Circuit Malfunction
P1443 EVAP Canister Purge System Malfunction
P0136 HO2S-12 (Bank 1 sensor 1) Circuit No Activity
I just replaced the O2's upstream and the MIL's on the back, so I don't know why it's still giving me O2 sensor codes. Besides that, my car is still bogged down upon acceleration. I've been told that my timing might needs to be adjusted, check for vacuum leaks, and check the fuel pressure. Which I haven't done yet, I was going to just go to Midas and have them do a full diagnostic test to see what they find. One thing I forgot to mention also, is the PCV valve or piece, broke off on my valve cover. (The arm or tube that runs from that to the cold air intake, I have it blocked off so it doesn't just keep sucking unnecessary air), I know this has to do with the EGR system, since the excess gas isn't being recirculated to be burned in the engine, would that set off the purge canister code, as well as to the fault O2s? If anyone would know, I'd appreciate it!
Codes listed :
P0141 HO2S-12 (Bank 1 sensor 2) Heater Circuit Malfunction
P1443 EVAP Canister Purge System Malfunction
P0136 HO2S-12 (Bank 1 sensor 1) Circuit No Activity
I just replaced the O2's upstream and the MIL's on the back, so I don't know why it's still giving me O2 sensor codes. Besides that, my car is still bogged down upon acceleration. I've been told that my timing might needs to be adjusted, check for vacuum leaks, and check the fuel pressure. Which I haven't done yet, I was going to just go to Midas and have them do a full diagnostic test to see what they find. One thing I forgot to mention also, is the PCV valve or piece, broke off on my valve cover. (The arm or tube that runs from that to the cold air intake, I have it blocked off so it doesn't just keep sucking unnecessary air), I know this has to do with the EGR system, since the excess gas isn't being recirculated to be burned in the engine, would that set off the purge canister code, as well as to the fault O2s? If anyone would know, I'd appreciate it!
