superduty4x4
Member
Hoping someone has a bright idea that hasn't crossed my mind yet. 97 F350, stock turbo, stage 1's, Tyrant tunes, new GPR, GP's ohm test OK. It's been struggling to cold start for a while now, even in the warmer months. Of course as it got colder, the issue got worse. I noticed battery voltage was dropping hard at KOEO, and on a cold morning the combo of running the GP's and trying to crank was causing the voltage to drop low enough that my stereo would lose memory. I was seeing a lot of voltage drop across the GPR (Napa GPR109) so I replaced the GPR, and eventually ended up throwing new batteries in it. Spins over super fast now and at KOEO I'm around 11.2 volts.
Still struggling on cold starts though, and having it in a tune makes it basically a no-start situation. In the stock tune what usually happens is it will start and go for about 3 "blop blop blops" then die, if I turn the key back off, then back on and try to start it will usually fire. This morning when I tried to start it, it was about 20 degrees out, truck hadn't been run since Friday evening and it really struggled to start. It started once and ran super crappy for about 10 seconds, barely enough RPM to keep itself alive, then died. When I tried to restart it, it sputtered and coughed quite a while before it finally lit.
My laptop with AE is dead right now and I haven't found my install CD yet so I can't say what ICP or IPR are doing. I know the IPR is old, I've had the truck going on 6 years and I've never replaced it. Same for the ICP. Only known concern is an exhaust leak at the up-pipes, and a rotted EBPS tube.
Any suggestions or ideas?
Still struggling on cold starts though, and having it in a tune makes it basically a no-start situation. In the stock tune what usually happens is it will start and go for about 3 "blop blop blops" then die, if I turn the key back off, then back on and try to start it will usually fire. This morning when I tried to start it, it was about 20 degrees out, truck hadn't been run since Friday evening and it really struggled to start. It started once and ran super crappy for about 10 seconds, barely enough RPM to keep itself alive, then died. When I tried to restart it, it sputtered and coughed quite a while before it finally lit.
My laptop with AE is dead right now and I haven't found my install CD yet so I can't say what ICP or IPR are doing. I know the IPR is old, I've had the truck going on 6 years and I've never replaced it. Same for the ICP. Only known concern is an exhaust leak at the up-pipes, and a rotted EBPS tube.
Any suggestions or ideas?