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Ok so still having issues with the high side pressure. Truck is going into Reduced Power Mode, Codes are as follows

0x7E8: P0089 - Fuel Pressure Regulator Performance (SES, Pending, Current, Old,...

Stock MAP Sensor from the L83

Bump again.....Im having the exact same issues as the OP with 2 Different LT4 HPFPs. Installed one, had low rail pressure, removed, warrantied it, and installed another brand new one and same exact...

Hey all, i have a 2014 L83 Sierra, Installed a Whipple, Katech 103MM, TB and a LT4 HPFP and Injectors. The truck is currently a paperweight. Hunts for Idle, and goes into Reduced Power mode about...

Bill, that is what im trying to figure out. I am not adding them to the Analog inputs, I am trying to add them as PIDs

I need to Not have them as the User Defined, and i need them in the PID...

I add them to the spot, but when connected to the car, they become unsupported. I KNOW they worked before the computer switch. Is there something

At the Bottom of the window for the PIDs it...

Bill, I understand. I am trying to log them, and i cannot get them to display.

In "insert parameters" I have the PID list, AUX input list and then User defined.

The Inj bank 1, MAP and the...

Yup I have connected to the Car, logged a file, and then realized that the Paramaters were unsupported

Guys I having a problem with the Scanner/Config files My Tuning computer died it was running Windows XP and was all set up and ran without any problems......so i bought a new Tuning Computer with...

Guys i have purchased the Aeroforce Sensor Kit for Fuel Pressure and Air Temp.

I already have a Innovate Wideband hooked up to my HPT Enhanced IO connector and want to add the 2 other sensors.
...

i have access to a tech 2, and a stock 97 GTP file should be ok then??

if this dosent work (because im traveling over an hour to tune the car) can i purchase credits for the entire year and then...

i just had this problem with a 97 GTP with a previous ZZP Tune, and Bill recommended flashing the PCM back stock with a Tech 2

guys i have contacted support, and still need help. Im trying to tune a 97 GTP and got the message that the VIN/OS pair message. I sent the file to Support and Bill responded with "This particular...

Keith, there are a ton of LQ4 tables out there, I have them if u need them.

after you have the general tables in the can then perform a full MAF tune on the car to get things dialed in....

its the 4.2 pulley, and yes there is alot of knock

i Installed a SSM90 Kit from ZZP on a Buddies 2003 MC SS. The ZZP Tune that they sent was complete garbage, and would run it so rich you could see the black exhaust coming out.

anyway, we have...

ok i have a 2003 Bonneville SSEi. with the VCM Tuner i only have my Vin Unlocked. I want to get a new PCM so that i can use the stock one for a backup, and then flash the changes to the New PCM. ...

yes i would love to have the Performance Shift/Tow Haul. I have a supercharged Bonneville that has the Tables in the PCM, but cant activate them

I know the DHP Tuner has the ability to turn the...

my buddy has the Tuner and i have purchased the credits for my car

i have the 2.2.0 installed on my Laptop, ( i just downloaded it off the website) and can make changes to my current file, and...

i have a 01 Stock Bin

and a Modded 00 Bin