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Well, the tuner was definitely the big problem. I wish I could have fixed it myself, I actually was going to unplug it but never got around to it. Turning it off didn't make any difference. There was also a small leak at the filter, there was some corrosion of the aluminum in just one spot where...

Ferm, how quickly should it bleed down? I think it's dropping too fast, and you shouldn't need to prime it all the time. If it is normal, then I'd just take the Banks off. How much do you guys pay for efi live?

So, a little progress today. Measured the pressure at the rail after pumping it up at the primer, and it does bleed down, so there is a leak somewhere. However... The horrible bucking and missing has something to do with the Banks tuner. Disconnect it when cold and the bucking goes away, plug it...

Well, I had it off. Plugs were ok and I changed the sealing washers. How do you check it?

It spent the last week in the shop, they replaced the two fuel lines that go to the filter head because they said they were dry-cracked. Not nearly bad enough for a leak. Then they replaced the air/water sensor at the bottom of the filter because they said it was a little wet. No change. They...

been trying to get it scanned at work for a month at least, but the d-bag service manager wont get it in. Going to take it to another garage this week. Pretty discouraged, I changed the fuel filter last week, yesterday I replaced every o-ring in the filter head with a kit I got from Nicktane...

Was that the kind of problem you were having, that caused you to rebuild the filter head?

also,it idles fine, only misses when its just off idle, tip in I think they call it. Just giving it a little throttle to pick up a little speed or to maintain speed. let off it goes away, or if you give it a bunch of throttle it goes away too.

so still havingthe problem in the mornings. Im not sure what to think. It wont do it at night, after sitting all day at work, sometimes for 18 hours.It only does it in the morning when its cold, and it wont come out of it. Even if I let it warm up for 15 minutes, get out and pump the primer, I...

Will check the primer. It's not hard acceleration, it's any acceleration, I have to really limp it at just off idle. But it doesn't do it all the time, idk why. It has a brand new AC Delco metal fuel filter on it.

If the boost valve helps I'll take it to the track, see what's really going on. So far I've killed a late model Mustang Gt, although to be fair it was just a short run from a green light to a highway merge, and he didn't go for it until about the time I started making boost...at which point I...

Update time: about 4k miles since I bought it. Only issue is occasionally get what acts like an air leak, only on cool mornings (hasn't been cold yet) it will buck or miss a little under acceleration. Haven't been able to find any fuel coming out, so idk where airs getting in. Other than that...

I have a friend who does EFI live at his shop, idk if he's done any diesels, or how much he'd charge. I've heard EFI live is big money.

Put the egt gauge probe near the bottom of the down pipe, got the egt and boost gauges installed in the pillar mount, set the six gun on 3 so it can learn it in time to tow this weekend. On 3, with the speed loader, it's working now and man does this thing scoot! It's kind of uneven when it...

havent had a chance to check the prime problem yet, wife took the truck yesterday morning, she said it was bucking a little at first but it went away. When she got back I drilled and tapped the manifold, was a bit of a project but I got it done. Manifold was thinner than I thought, not a lot of...

ok, Ill check it that way tomorrow morning. its been sitting for a couple days. I havent experienced any hard starting though. Planning on getting my courage up and doing the egt this weekend. Im going to have to drill and weld the bung on the exhaust for the egt gauge, too. Not too enthused...

Just talked to a guy with a pretty hot 06 Duramax and explained my problem, he seemed to think having the egt probe not hooked up could cause confusion in the computer. So now I'm thinking I should bite the bullet and drill and tap the manifold.

What exactly do you mean by check? Pump it or what?

just changed the fuel filter with an AC Delco a couple weeks ago. I'm wondering if it's maybe got a slight air leak somewhere and it's bleeding down overnight. Why else would it not do it at lunch or on the way home? I don't get it. I'm seriously thinking about pulling the Banks out this...

So I left it set on six for everyday driving, not beating on it at all, can't tell too much difference, maybe a little quicker through the midrange. After a week or so, suddenly I'm getting a skip or shudder in the mornings, not sure if it's trying to hit a shift or if it's the motor sucking...