possible bad hpfp sensor? 29E2

[foe516]

so i have been getting 29E2 for a while, recently put new front O2 sensors, new index 12 injectors, new hpfp, and new ngk plugs. i recently switched out my 4psi hobbs switch for a 15psi hobbs switch for my tbi. i have been running the tbi since it was beta and never had any problems but recently upgraded to the current tbi which flows a little more than the beta. all looked good but was still getting 29E2 codes for rail pressure. my lpfp sensor was changed out last year. i noticed when i did a pull the other day i got kicked into map 4 and looked at my logs and my hpfp took a dump. figured it was the hobbs so i adjusted it and took logs yesterday. strange thing is now my hpfp only dives at a random few spots. i got the hobbs switch from a buddy who had it laying around from an old mustang build so i am thinking it might be the hobbs. but for the last 6 months i have always gotten the 29E2 code and i never realized we had a sensor on the fuel rail until i looked closer on real oem. car is a 2010 135i 80k miles fbo inlets/outlets tbi and an inline walbro.

http://www.datazap.me/u/mike082802/l...1-4-10&mark=59

so the question is how many of you have actually had to replace your hpfp senson on the rail and can i check with inpa?

[Sticky]

Bump to help him out

[R.G.]

I can't decypher JB4 logs but to your question about the sensor, it is not unheard of to need to replace it. Hobbs switches are so cheap man. Swap that out and re log. Use INPA to check codes and screenshot it.

[jt0407]

so i have been getting 29E2 for a while, recently put new front O2 sensors, new index 12 injectors, new hpfp, and new ngk plugs. i recently switched out my 4psi hobbs switch for a 15psi hobbs switch for my tbi. i have been running the tbi since it was beta and never had any problems but recently upgraded to the current tbi which flows a little more than the beta. all looked good but was still getting 29E2 codes for rail pressure. my lpfp sensor was changed out last year. i noticed when i did a pull the other day i got kicked into map 4 and looked at my logs and my hpfp took a dump. figured it was the hobbs so i adjusted it and took logs yesterday. strange thing is now my hpfp only dives at a random few spots. i got the hobbs switch from a buddy who had it laying around from an old mustang build so i am thinking it might be the hobbs. but for the last 6 months i have always gotten the 29E2 code and i never realized we had a sensor on the fuel rail until i looked closer on real oem. car is a 2010 135i 80k miles fbo inlets/outlets tbi and an inline walbro.

http://www.datazap.me/u/mike082802/l...1-4-10&mark=59

so the question is how many of you have actually had to replace your hpfp senson on the rail and can i check with inpa?

What was the issue?

[Sticky]

What was the issue?

@foe516