#560 Running Rough

Tony Dipatri

Tony Dipatri

New member
Build.
38LB injectors
415 Cam
Ported Heads
SRP Pistons
PTE Stage 3 Turbo
3" Exhaust w/ Cat delete
2800 Stall

I basically have 180 miles on the motor. I set the factory gap in the plugs and adjusted the fuel between 38 and 42 LBS with vacuum off. The timeing was set to factory also. I do have the stock chip and the truck runs and it is drivable but sometimes it stalls at idle and it seems to be loading up at all speeds. There are no codes displayed either. I think It has NGK plugs and a Bosch O2 sensor.

I am just trying to get at least 1000K miles for the break in period but was hoping it would run a little better than it is.

I was thinking that maybe the small upgrades that were done to the engine maybe conflicting with the chip?

Any ideas????'

I will be installing a BS3 maybe in a month or so
 
Tony Dipatri

Tony Dipatri

New member
Re: #560 Running Rough

I had the vacuum checked for leaks. I am not sure how the guage is supposed to work. I was looking for a video on you tube to see if someone had a video of the guage cluster to see how that one works.

Thanks

Tony
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: #560 Running Rough

Have you got Datamaster hooked up to the truck yet? Make a log file of the truck at idle and of the truck when you're having problems. Someone can take a look.
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: #560 Running Rough

www.moates.net sells the Extreme ALDL cable.

There are others out there but this is the best - I wasted way more money on other "cheaper" solutions and should have just got this in the first place.
 
WyoSyclone

WyoSyclone

Active member
Re: #560 Running Rough

You need to get a wideband O2, 3bar map, and then go Code59 or a custom chip. Any small change in these motors pretty much requires a new tune... you've actually made major changes as far as the factory chip is concerned.
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: #560 Running Rough

WyoSyclone said:
...you've actually made major changes as far as the factory chip is concerned.
Click to expand...

I missed that bit...

Stock chip? No wonder!

What heads? Stock, Vortec or L35s? You've ported them yourself or professionally?

www.Moates.net sell the Ostrich 2.0. You'll need a G1 adaptor from them as well. As for wideband, get the PLX DM 5 (or DM 100 - in the for sale from TwinTurboV8Ty if it's not sold).

3 bar MAP can be obtained from Hood Tuned performance (vendor on here). he can get you the PLX as well.
 
Tony Dipatri

Tony Dipatri

New member
Re: #560 Running Rough

The machine shop ported the stock heads. I will just drive it slow until the Big Stuff 3 comes in. I just thought I could smooth it out til it came in
Thanks
 
Tony Dipatri

Tony Dipatri

New member
Re: #560 Running Rough

Thanks

But I wouldn't know what to do with it anyway. Thinking of selling the truck due to work issues.


Thanks

Tony
 
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