P0087
 

Damn truck threw a P0087 this morning. It was about -8 and I had it idling for about 10 minutes before I jumped in it. Wouldn't go over 20 and then threw the code. I unloaded the PPE (I had it on L2.) and it runs fine now.

Is this common with a PPE?

Could be something with the cold. Seems like some programmers don't add their power until the engine is warmed up enough, if that makes sense.

I had that problem with my predator (on my LLY) one time when I was in Iowa, not sure if I let it warm up enough though.

yep ur desired pressure didnt meet ur demanded pressure, i used to get them all the time untill i turned it off with efi live :D

That's really weird. I was only on L2 and was giving it maybe 1/4 throttle.

Let it warm up this morning for about 10 minutes with the high idle engaged and didn't have any problems.

do you have a lift pump? if so make sure its working right my tts pumps went out and that was my prob ! are u at an idle or driving at 1\4 throttle ? i know that sounds crazy but there are two diff tables the truck runs off of for rail pressure at idle and drive most of the time you will get a p1093(fuel pressure low during power enrichment)code in drive with the lilly! your p0087(fuel pressure to low) makes me think you need a pump (if you dont have one something might be wrong with it )with the kinda tuner you have or you need a shim kit or you need to have the cp3 checked. what ppe tuner is it ?

He has the PPE Standard.. Johnny, I have had no issues so far with my PPE and the cold weather.. I have my high idle engaged as well and it was about 3 degrees in El Reno, OK yesterday when I went and got my camper.. I just let it warm up untill engine temps are normal.. You might try a shim kit bud..:U:

Well it was -15* this morning and the truck did the same damn thing. I'm back to stock since I'm trying to sell the programmer too. I plug it in at night and let it idle every morning. I thought it might be an engine temp issue at first but it was still doing this when I got to work, 15 miles away and the heater was hot. I have to climb a huge hill to get to work that I normally run 70-80 up but could only see about 20 today with a ton of white-blue smoke coming out of the tailpipe. CEL is on with the same code too. This is starting to piss me off.

i think it is an lly thing cuz i can be running striaght #1 and the thing will still go into limp mode at -10 and below... i found if i let it get nice and warm while it is limping then stop and turn it off and let the computer reset it will run normal...

Well since I've basically said the same thing twice I'll keep it short to close out the issue. My fuel was gelling. Problem solved.