I recently purchased an E99 F350 (see signature for details) that was customized by 2L Custom Trucks. The truck only has 54k miles on it now, and is primarily being used to tow my 27 foot travel trailer. The trailer is about 6300 lbs empty, and a max weight of ~7800 lbs.
The maiden voyage, a few months ago, revealed an intermittent Service Engine Soon light. I quickly realized that it would only turn on in heavy climbs while I was going close to WOT, and EGTs were above 1100*. I did not scan the truck when I initially got it, but once I had these intermittent SES lights, I had it scanned and it revealed the following:
P1249 Wastegate Control Valve
P0478 Exhaust Pressure Control Valve
P0470 Exhaust Back Pressure Sensor
When I first bought the truck, the exhaust brake was not functioning. It has since been repaired (a lot of carbon build up, and a vacuum leak). The codes have been cleared, and since I have been keeping EGTs down, I have not seen the SES light again...
I now do not push it very much on hills. Typically the temps are around 700-900*, and they will raise intermittently as I go up hills. The truck is not "chipped," as far as I know, and the temps appear to be normal, from what I've read on here.
I am a little unhappy with the performance, though. I typically have to climb hills in 4, because if I do so in 3, I'm at about 50mph at redline. It seems strange having to climb hills in 4, but in 75mph zones I try to go at least 55-60mph in the inclines.
I've read some about upgrades. Since I have an E99, I could upgrade to the late 99 turbo and pedestal. I've also read that the BDP Dominator 66 is recommended. Anyone know, If I upgrade my turbo, will my BD Exhaust Brake swap right over?
I've read good things about DP-Tuner. It looks like they suggest/demand aftermarket intake and exhaust with their tunes. Do I upgrade my turbo first, or will I see 'ok' gains on my stock smaller E99 turbo?
As far as the intake, it looks like the Ford Severe Duty intake is recommended. I'm using the stock intake at this point.
I've thought about changing the exhaust, to try and lower EGTs, but I have to run emissions every year in my county, so I'd have to be careful not to smoke too much. Also, not sure how that would effect mating up with the Exhaust Brake, if at all.
Lastly, I have a PCM question. Since I have an E99, I don't have the "cruise" light on the dash. If I were to upgrade the PCM, what specs do I need to make sure match up? Are they transmission specific? I have a 6MT, so it may be pretty difficult to find one compared to an auto.
Alright, I think that is enough questions for now! Thanks all!