Recent content by scons96

96-00 454 Running Rough

Alrighty well I feel like a bit of a clown haha. Turns out I had the spark plug wires mixed up on bank 1 so the truck was essentially running on 5 cylinders. BUT, all the work I did was not in vain because I did confirm the FPR was bad. I knew it had to be something that I did because it ran...
- scons96
- Post #13
- Jan 18, 2021
- Forum: Engine Performance + Maintenance
96-00 454 Running Rough

UPDATE: I replaced the fuel pressure regulator yesterday and the fuel trims seem to be much better. Bank 2 is about the same as it was before, but bank 1 is down to around +13% at idle from being at +30% and higher. HOWEVER, the truck still runs incredibly rough. I had to take the distributor...
- scons96
- Post #11
- Jan 18, 2021
- Forum: Engine Performance + Maintenance
96-00 454 Running Rough

Well I guess what I'm going to do first is go back and double check all my work which will probably mean taking the upper intake back off so I can have a look at the cap and rotor again. I did plugs and wires when I first got the truck in September so I'm not worried about those. Thanks for the...
- scons96
- Post #8
- Jan 11, 2021
- Forum: Engine Performance + Maintenance
96-00 454 Running Rough

There are no codes for anything. Not even pending codes, that's the frustrating part. Bank 1 fuel trim was hovering between +30% and +50%
- scons96
- Post #3
- Jan 10, 2021
- Forum: Engine Performance + Maintenance
96-00 454 Running Rough

I have a 1999 K2500 with the L29 454. I replaced the 34 gal. fuel tank, fuel lines, upper intake manifold gaskets, and the cap and rotor in the truck. I also replaced the small vacuum line going to the fuel pressure regulator as it was dried out and brittle, and I replaced the PCV hose. Before...
- scons96
- Thread
- Jan 10, 2021
- 454 96-00 intake gaskets l29 lean running rough
- Replies: 12
- Forum: Engine Performance + Maintenance
96-00 L29 454 Headers

That's what I figured. From what I could tell by the pictures it looks like there is an 02 bung on the driver's side header that would be in the perfect place for the egr. Or, it could just actually be for the egr. I guess I'll have to buy them and just find out for myself lol. Thanks for the reply
- scons96
- Post #3
- Oct 9, 2020
- Forum: Engine Performance + Maintenance
96-00 L29 454 Headers

Hello folks, I've got a '99 K2500 with the 454 and I want to put some long-tube headers on it. I've seen sets on Summit and Jegs that say they are direct fit for my truck, but then they say they are only for up to '95. If anybody has any ideas, maybe a part number, that would be awseome. Thanks...
- scons96
- Thread
- Oct 9, 2020
- 454 96-00 headers l29
- Replies: 3
- Forum: Engine Performance + Maintenance