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Hi there

Im looking at purchasing the GM E41 ECM upgrade kit for a 2019 GMC Sierra 6.6 Duramax. This is primarily for removing emissions control systems.
I don't usually use HP tuners for Diesel...

:doh: Ill move it to the GM forum. Thanks

Hi there

Im looking at purchasing the GM E41 ECM upgrade kit for a 2019 GMC Sierra 6.6 Duramax. This is primarily for removing emissions control systems.
I don't usually use HP tuners for Diesel...

Hey guys

I have a FG XR6 non turbo, that has had XR6 turbo parts fitted, and is currently in for a custom tune.
I have a couple of issues, that I'm trying to get my head around.

I have...

Depending on the size of the hole you put in the throttle body, you will need to add some airflow to your base idle airflow table.
Also will need to add some timing to your base idle spark table....

Hey Guys

Im having some issues with a 2011 Holden VE SS that has had a low mount twin turbo kit fitted. blower cam, ZL1 pump, xspurt 725cc injectors.

If you let the car sit for a minute,...

The water met/injection had already been fit to the vehicle before we worked on it, and the interchiller kit was just suppled to fit by the customer.
Not usually the type if setup we would design...

Thanks for the reply
Have done hundreds of supercharged LS setups, mostly pump gas LSA or 2300 builds. Havent done any water/meth setups though, but have a fair idea where my spark timing should be....

Hey guys, Im going to have a gen 5 camaro hitting the dyno in the next couple of days. Its a pretty big build, LSX 388, brodix BR7 heads, edelbrock 2300, interchiller
water meth etc. I have never...

Hey guys, when you rescale this table can you add "cells" to the axis? or will i have to add my new limit to the last cell, and interpolate the axis.
This means i would need to readjust the complete...

Hey Guys, Having some trouble with a 2017 Holden VF GTS LSA, that im hopeing someone that could chime in on with some wisdom.

Engine specs - LSA, Full exhaust, 10% overdrive, small camshaft, 850cc...

I have had a lean after start issue with these injectors before. Found that the injector voltage offset table was off.
When i started the vehicle PCM voltage was 12 volts, after a few minutes of...

I had a vehicle the other day do something similar. After flashing would cut in and out when cruising.
Had a look at my vve and could not find anything obvious. Ended up being some sort of glitch...

Hey guys, anyone know what this does?? There is a master switch which disables and enables it.
I had a vehicle LSA, 65lb injectors, big cam, etc which was running extremely rich on cold start, fuel...

Hey guys

I have tuned a few LT4 camaros and corvettes with great results with just a tune(no bolt ons)

I have a customer with a 2016 camaro ss LT1, and is looking to getting it tuned.
Is...

Hey guys

I have a 2018 zl1 camaro in for exhaust upgrades and tuning, I haven't tuned an LT4 with the 10 speed yet.
Unfortunately i live overseas so the TCM locking procedure is a bit of a long...

Post tune file

Direct and port injection:cool:

I have had a reluctor wheel on backwards before. Only way i diagnosed it was put a scope on it and compare the cam and crank waveform.
Heres what it should look like.74907

When entering into a wide open run, will go into PE at 2000rpm and sit about 11.5 AFR, then at 2500 - 3000 goes lean. At first I thought it was just my wideband was
playing up, but you can see it in...

Anyone still having issues, even with desoot mode disabled?

I always seem to have a lean spike between 2500rpm - 3000rpm and need to fudge my MAF and VVE to improve it.
Usually E67 LSA engines...

Spent a bit of time dialling in the offset vs pressure vs IGNV table, and it sorted my issue. Got my hot starts spot on:D

*update*
Scanned the the vehicle today finally, i have noticed that when the car is started and fuel trims are lean, control module voltage is 14.6 volts. Fuel trims only settle
when control...

My values max out at about 85psi, I thought that would be the case, i data logged pressure delta and it seemed to be within the values.
Just thought it was good practice to not have any values maxed.

Will look into it thanks