imnotacop420
Squire of Awesome
So I have been fighting this problem for a while now, I don't drive the car much so I didn't worry too much about it.
The car either idles below 500 RPM or between 1500-2000 RPM, and I also get some hesitation below 3000 RPM when driving. If you are getting on it in the high RPM range there is also a strong smell of fuel. The car sits the majority of the year, and I only put between 1000-3000 miles on it during the summer. If it sits for a while, or if I disconnect the battery to reset the PCM, it will stall out the first couple times I start it up. I have checked for vac leaks by spraying carb cleaner, found nothing. I have replaced IAC and PCV, still same problem. Intake gaskets probably have around 10-15k miles on them. Plugs and wires are probably around 5 years old, but I would say have maybe 10-12k miles on them. If I have the AC on the idle is up around 2000-2200RPM
Searching around seems a lot of people suggest replacing plugs/wires and cleaning the MAF, but I think it needs tuned.
Car is a 2.5 with 167,000 miles
Mods
MSDS Headers
EGR Delete
Optimized Mustang TB
Throttle Body Spacer
Max Extrude Honed UIM
Sho-Source LIM
75mm MAF housing (with stock sensor)
BAT intake pipe
Taylor 9mm plug wires
I think that's it engine wise
when I got the MAF it was calibrated for a returnless style fuel system, I have a return style fuel system. After doing some research I found where some people were using their stock sensor in the larger housing without any issue, so I went that route.
I also have one of those MAF calibrator things, but I haven't hooked it up or played with that as I figured I would want an A/F gauge before I started turning the knobs on that sucker.
CEL is obviously on for headers and EGR delete
Thoughts/suggestions? Anything I can try before I take it to a tuner?
Thanks!
The car either idles below 500 RPM or between 1500-2000 RPM, and I also get some hesitation below 3000 RPM when driving. If you are getting on it in the high RPM range there is also a strong smell of fuel. The car sits the majority of the year, and I only put between 1000-3000 miles on it during the summer. If it sits for a while, or if I disconnect the battery to reset the PCM, it will stall out the first couple times I start it up. I have checked for vac leaks by spraying carb cleaner, found nothing. I have replaced IAC and PCV, still same problem. Intake gaskets probably have around 10-15k miles on them. Plugs and wires are probably around 5 years old, but I would say have maybe 10-12k miles on them. If I have the AC on the idle is up around 2000-2200RPM
Searching around seems a lot of people suggest replacing plugs/wires and cleaning the MAF, but I think it needs tuned.
Car is a 2.5 with 167,000 miles
Mods
MSDS Headers
EGR Delete
Optimized Mustang TB
Throttle Body Spacer
Max Extrude Honed UIM
Sho-Source LIM
75mm MAF housing (with stock sensor)
BAT intake pipe
Taylor 9mm plug wires
I think that's it engine wise
when I got the MAF it was calibrated for a returnless style fuel system, I have a return style fuel system. After doing some research I found where some people were using their stock sensor in the larger housing without any issue, so I went that route.
I also have one of those MAF calibrator things, but I haven't hooked it up or played with that as I figured I would want an A/F gauge before I started turning the knobs on that sucker.
CEL is obviously on for headers and EGR delete
Thoughts/suggestions? Anything I can try before I take it to a tuner?
Thanks!