Engine/Transmission (1998.5 - 2002) New mach 1.5 injeckters ,now lopeing

[Regcabguy]

I've had DD2's&Mach 1. 6's(current) in my truck and have experienced two events: first,when coming to a halt after a freeway run,I experience a slight loping for a few seconds,secondly: if the truck has been shut off,upon starting and immediately engaging drive I get a semi-stall situation,partly I surmise from the tight converter,and the inability of the v. p. to keep up with the higher fuel demand. You might have other issues.

I want to add that the minor symptoms I experience now with the Don's,manifested themselves equally with the DD2's before. The truck does idle slightly better and produces better mpg's. Thanks goes to Bob W. for great customer service.

 

[Joe Mc]

When I first installed my 1. 6s upon initial start up it idled a bit odd - kinda like my old worked out 289 used to. It sounded a little cool but, I knew a diesel shouldn't idle like that. Had a small leak on the #6 (yep had to be the PIA one) feed line. Once I got it snugged and stopped the leak it was smoother than stock. The only time I get anything now is first start of the day - the idle will be a bit lopey for the first 15 - 30 seconds then it just kind of smooths itself away . . . I know it's been said before but - you get what you pay for. I'm glad I did my homework and listened to the folks here, my DTT trans guy and Rip Rook about the F-1s. I'm a happy camper - I'd only be happier if I went with a set of 4's and an hbt2/14 from the giddy up. Gives me something to look forward to - once I locate an LS rotor to rotor.

 

[mcoleman]

I've had a couple sizes of Don's injectors in my truck and liked them both. The 4s idle better than stock. And mileage is actually up when you stay out of the throttle. :-laf i hope someone invents a VP that flows huge fuel and will stay alive.

 

[arlewis]

follow up on install

Just put my new vp44 in. still have a slight hesatation when going from park to drive and reverst. idle is just barly smooth. over all tons of power. now how can I smooth out the idle? any thoughts?

 

[Cummins Thunder]

Have you set your valves?



CJ

 

[arlewis]

no not yet.

I was thinking the same thing, I'M now at 83500 miles might be the the thing to do. now that I have anew vp44 what coult it hurt?