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I'm no expert by any means but you said you have open long tube headers? I'm assuming your O2s are in your collectors and then hit open air in a few inches. If that's the case you need more exhaust...

Thank you for looking at that for me. Its a 0411 PCM. The highest value on the idle spark table is 33. not sure why it is going up to 40. Ill drop it to 23 across the board and see if that helps.

It's got to be something I didn't turn off in my RAF tune. The STFT slowly go down to -15 while I was logging RAF. Take a look at the tune and log when you get the chance

had it set to 50 hits per cell. It could be wrong since it was idling so bad but it is doing this in park not moving so it shouldn't be using the VE table right?

no rear O2's. no cats so didn't see a need for them. Guess I can add those to the scanner and see if they read anything. commanded is on there it's 14.27. If I messed with EQ I don't know where to...

I set my idle to 725 warmed up in P/N and 750 in gear. I went through the RAF a couple of times, changed the idle speed, then went through one more time. I put my new numbers in my regular tune. Now...

The intake temp was not my problem it was running good for a couple of drives and has now returned to surging coming to a stop. I found a good write up on tuning base running air flow I'm about half...

I found a problem! I did not realize I needed to calibrate the intake air temp sensor table for the new maf. It was of about 20'F off. It had to relearn the fuel trims due to the temperature change...

have you tried to shift it into 4th using the vcm scanner under special functions?

Also wanted to mention it doesn't surge much on my way to work when its 1pm and 93F outside. On the way home its close to 75F and it has alot more trouble staying running.

Thanks for the input cobalt. I have fooled with it some and got it closer than when i started. Its about .3 lower most of the time. I do need to adjust it some more.

hello everyone. I've been working on my tune on and off for a few months. finally have my cartridge style maf in and calibrated and turned my ve stuff back on. It ran great the first day but after a...

mine is in the mid to lower 70's
243 heads milled 20 thou
5.3 dished pistons
tbss intake
BTR stage 4 truck cam
long tubes

I haven't had time to play with mine again but I was looking through the manual to find the voltage specs and read this

2. When utilizing the analog output feature of the AFRM, always be sure to...

I have the same wideband in my truck. Key on engine off the display always shows 16 but HPT never goes over 15 even though the range in is set to 16max. I also believe it does not change as fast in...

To my understanding you should adjust your VE table before you calibrate the maf. Check out my current layout if you want 77956 it is missing maf frequency channel in this log :cheers:

That was it! After all this time! :doh: Thank you

Hello everyone. I have been working on my truck's tune a couple of weeks now. I have it idling pretty good and have the ve table dialed in pretty well. Now I'm working on the maf calibration. The...