- Joined
- Feb 18, 2006
Hmmm, have you checked the cam? All rockers moving the same?
May have some worn lobes. Flat tappet cam?
car pop'n under boost.
- Thread starter unobetr
- Start date
Hmmm, have you checked the cam? All rockers moving the same?
May have some worn lobes. Flat tappet cam?
Black Power
Well-Known Member
- Joined
- Jul 3, 2006
Ok, now get your receipt and take that crank sensor back to Vato Zone. It's gonna get expensive if you start throwing parts at it just to check (don't ask me how I know
).As Rick said, that thing usually is either working or not. Your old one is apparently good, so that's not it.
Get it running, once it's running (and not warmed up yet, for the sake of your hands) unplug the cam sensor from the harness. Go drive it around, log it, and head back to your house. After you do that though, don't forget to plug it back in or it won't start again.
I am gonna take a look at your new logs.
Black Power
Well-Known Member
- Joined
- Jul 3, 2006
I don't think it had to do with your battery, you had great voltage during the 3rd log, but it still did it. One thing that's confusing me is your duty cycle on your injectors, it's only at 22%. That's really low for being on the throttle.
I know I've mentioned this already, but you are still not getting full voltage to your tps when you go WOT. If you have floormats, take em out.
If I were you, I would try it with the cam sensor unplugged, floormats out, log it. If it still does it, get ahold of Eric at turbotweak and ask him to look at your log. He'll know why your duty cycle is so low (what injectors are in this thing, btw?)
After that, I'd say pull the valve covers and roll the engine over to make sure your cam isn't going flat. Hopefully you have been adding ZDDP at oil changes.
I know I've mentioned this already, but you are still not getting full voltage to your tps when you go WOT. If you have floormats, take em out.
If I were you, I would try it with the cam sensor unplugged, floormats out, log it. If it still does it, get ahold of Eric at turbotweak and ask him to look at your log. He'll know why your duty cycle is so low (what injectors are in this thing, btw?)
After that, I'd say pull the valve covers and roll the engine over to make sure your cam isn't going flat. Hopefully you have been adding ZDDP at oil changes.
Black Power
Well-Known Member
- Joined
- Jul 3, 2006
It's doing it right before 4000 rpm, you can see it easily in those logs.
Have you tried turning the boost down to see if it still did it with little or no boost?
Black Power
Well-Known Member
- Joined
- Jul 3, 2006
Most of that electrical stuff should be fine unless the connector wasn't sealed off well or there was a bare/frayed wire.
- Joined
- Feb 18, 2006
Go figure.
Black Power
Well-Known Member
- Joined
- Jul 3, 2006
Those logs look a lot better. I think you got it!
Black Power
Well-Known Member
- Joined
- Jul 3, 2006
You guessed it! :biggrin:
does this look ok???
http://i.imgur.com/2AxBp.jpg
http://i.imgur.com/2AxBp.jpg
- Joined
- Feb 18, 2006
Not without your help.
:biggrin:Is the gear that drives the cam sensor worn out? Thats what it looks like.
What does the gear on the old cam sensor look like?
I tell ya, we have a problem with oiling in the front cover. Thats no doubt. I just changed my cam sensor ring and pin gears. That a comp billet roller cam?
