dbeeche
Active Member
- Joined
- Jan 10, 2020
- Threads
- 4
- Messages
- 27
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- Location
- Live Oak FL
- First Name
- Dale
- Vehicle(s)
- 2018 Ecoboost, 2005 F150 XLT SUPERCREW, 3000GT MITSUBISHI SL, 1975 F100 302
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- #1
I have a Steeda tuned, 2018 Ecoboost, and 10 speed automatic. I have the 3" off road catless down pipe, 3" MBRP Catback Exhaust, Airaid CAI, Turbosmart; Kompact Shortie Recirculating Blow off valve, and a Mishimoto Intercooler.
I have always had a P0420 "Catalyst System Efficiency Below Threshold Bank 1", since installing the downpipe, but recently the P018B, "Fuel Pressure B Circuit Range/Performance" code appeared. I identified the sensor, located, front drivers side, and behind the belt tensioner. I found fuel residue on the sensor where it screws in, and I tightened it slightly.
I cleared the codes and took it for a test drive. The vehicle drove fine, shifted fine for two or three miles...then I decided to get on it, like I have in the past and man that thing hooked up like never before, but jerked hard a few times, which has not happened in the past. I stopped, put it in Sport Mode, and again got on it with only a hard shift in about sixth gear. I placed it back into drive, and acted responsibly.
I stop and took off normally and then all of a sudden, when I reached ten MPH it acted like the transmission was trying to go back into first or second gear. I stopped and made sure no hoses came off of the engine and for any possible leaks, and found no issues. I proceeded to put it in drive and again at ten MPH, it did the same thing as if it was trying to downshift into first or second gear, instead of up shifting. I drove it backwards reaching a little over ten MPH and nothing happened.
The P018B, code never returned, but now I have this issue with the transmission.
Will placing the stock tune back, correct any issues with the PCM? There are no codes, other than the P0420.
I thank all of you in advance for reading my rambling, and any help would be greatly appreciated.
I have always had a P0420 "Catalyst System Efficiency Below Threshold Bank 1", since installing the downpipe, but recently the P018B, "Fuel Pressure B Circuit Range/Performance" code appeared. I identified the sensor, located, front drivers side, and behind the belt tensioner. I found fuel residue on the sensor where it screws in, and I tightened it slightly.
I cleared the codes and took it for a test drive. The vehicle drove fine, shifted fine for two or three miles...then I decided to get on it, like I have in the past and man that thing hooked up like never before, but jerked hard a few times, which has not happened in the past. I stopped, put it in Sport Mode, and again got on it with only a hard shift in about sixth gear. I placed it back into drive, and acted responsibly.
I stop and took off normally and then all of a sudden, when I reached ten MPH it acted like the transmission was trying to go back into first or second gear. I stopped and made sure no hoses came off of the engine and for any possible leaks, and found no issues. I proceeded to put it in drive and again at ten MPH, it did the same thing as if it was trying to downshift into first or second gear, instead of up shifting. I drove it backwards reaching a little over ten MPH and nothing happened.
The P018B, code never returned, but now I have this issue with the transmission.
Will placing the stock tune back, correct any issues with the PCM? There are no codes, other than the P0420.
I thank all of you in advance for reading my rambling, and any help would be greatly appreciated.
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