98.5 24 valve misfire?

[Dad]

Originally Posted by Timmay

It seems to run fine. It's odd. If I turn the power up at all on the Edge is very obvious under load. It'll buck and smoke a ton. With the Edge off, it runs normal as long as i'm not getting on it. I can definitly tell it's missing some but it doesn't sound like it's going to explode like it does with the Edge on.

Do you have the fuel pressure option hooked up on the Attitude?

What you describe is a different symptom from where you started in the thread and now sounds like the classic fuel starvation. Sounds like the lift pump is failing or can't keep up. The Juice on high setting is requiring more fuel.

The cylinders do run cooler toward the front because of the location relative to the coolant inlet.

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High Rider: 98.5 Ram 2500 4x4, 5 Spd, SB 13", A3000 turbo, DDP Stage 3 sticks, studded, 4" TB,, AEM Intake, Gauges, FASS95, S-Chips Tune
Low Rider: '06 Chevy 1/2 Ton, Victory Red, 2/4 Drop, roll pan, sport mirrors, rollin on 20's

[clc]

Brain cramp. I forgot you had a good FP reading.

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96 3500 4WD, 47RE, gauges; 97 3500 4WD 47RE, gauges; 97 3500 2WD 5-spd; all club cab. 98.5 2500 2WD SB, 5-spd, gauges, quad cab

[Dad]

Originally Posted by clc

Brain cramp. I forgot you had a good FP reading.

Me too. I missed that. So you have good FP when the Juice in on a higher level, pedal matted and the black smoke flying and misfiring.

If so, I'd clear the 0216 code and see if it comes back.

The MAP sensor could also still be in play.

__________________
High Rider: 98.5 Ram 2500 4x4, 5 Spd, SB 13", A3000 turbo, DDP Stage 3 sticks, studded, 4" TB,, AEM Intake, Gauges, FASS95, S-Chips Tune
Low Rider: '06 Chevy 1/2 Ton, Victory Red, 2/4 Drop, roll pan, sport mirrors, rollin on 20's

[Timmay]

Yep, I have good fuel pressure at all times. I need to get my hands on someone with a scanner to clear the codes for me.

Tomorrow i'm going to replace the crank position sensor and the IAT. At ~$60 or so for the pair it's a good thing to do anyway.

My starter loosened itself up and popped out of the bell housing about 3 days before the truck started running like this. I have a feeling the starter might have cracked the CPS when it fell off.

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Tow rig/DD: '98.5 2500 24valve, NV4500 swapped behind a 13" SBC Con "O", 4.10s, 315/70R17 MTZs on 3rd gen alloys, Edge Juice w/Attitude, BHAF, 4" MBRP etc etc.

[Timmay]

Still having troubles.... I'm officially out of ideas.

I replaced the IAT and the CKS. No change besides curing the long start and sluggish tach issue.

Anybody have any friggin clue what the hell is wrong?

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Tow rig/DD: '98.5 2500 24valve, NV4500 swapped behind a 13" SBC Con "O", 4.10s, 315/70R17 MTZs on 3rd gen alloys, Edge Juice w/Attitude, BHAF, 4" MBRP etc etc.