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Scratch that, problem solved. Pulled another stock tune from the repository and moved everything over again. Some of the fueling and airflow tables were dramatically different from the stock tune I...

Stock 8.1/80e, 0411 PCM from 6.0/80e truck. Tables and values from stock 8.1/80e tune transferred to this ECM. Will start fine and idle for a few seconds until injectors open up and flood the...

You are correct. I had a spare ECM from 6.0/80e. I swapped it with the 8.1 ECM and the IAC worked and it idled as it should. What tables/areas are necessary to move over from the 8.1 tune? I...

Thanks for the feedback. What makes you think this is the case (not challenging just learning)? I assumed the IAC wasnt moving because the hole the in throttle body was allowing too much air in at...

Update: Verified wiring to O2 sensors and they are wired correctly. O2 sensors are new. Any ideas why the large discrepancy between bank 1 and bank 2?

Also noticed that I had codes p0342 and...

Ok, better late than never. TPS is working fine it appears. Registers 0>100% when logging (engine off).

That said, it appears I have an issue with O2 sensors. I need to check to see if I...

Hello all, first post for me here. Brand new to hptuners and new to tuning so I'm starting from scratch here (please go easy!). I have a 69 Blazer that I've swapped an 8.1L/4l80e into and am in...

Ok, I will switch the pins on the pcm connector and see what happens. At temp, should both read near 450mv?

Logs attached...

I recently scanned one of the first few startups of my finished setup - 5.3 turbo/T56. In observing my O2 voltages, I noticed that B1S1 and B2S1 were reporting vastly different values. B2S1...

Scratch that....figured out my issue. I copied over the g/s values instead of the lb/hr values for injector flow rate. That'll do it!

Here is the tune prior to the adjustments listed above.

JY 5.3 LM7, precision 76mm turbo, SD tune, cobalt 2 bar map, siemens mototron 60lb injectors, 224/228@114 cam.

This is my first time using hptuners and i'm attempting to get this thing to idle. ...

Great. Using the 02 ls6 intake manifold with 60lb siemens injectors and stock TB. I have the injector tables set using Greg Banish's calibrated for success.

Because I will have to use credits to purchase it. Ive already spent the credits for the ls1/t56 with 2 bar sd. Whats the best way to go about doing this? Thanks

Ok everyone, im new so please go easy. Im beginning to tune a 5.3/t56. Im beginning with the original tune from the 02 z28 - ls1/t56. Which of the 5.3 tables should I bring over to the ls1 tune to...

Anyone?

Hello all,
This is my first post here and I'm new to hptuners, so go easy on me! Heres the setup: 1994 camaro, 5.3/t56. JY 5.3, 224/228@114 cam, ls6 intake precision t76, 2 bar SD tune. Im...