E38 PCM swap issue

[wasyl]

Truck is 2011 GMC Yukon 6.2 6 speed.
Mods done:
E38 PCM form 2013 Yukon XL - 2 SD OS, VATS patches set to disable, starter patch set to disable, diagnostics for starter relay set do disable, disabled all immo/theft codes, MAF failed, TB, fuel, spark, tables mached to old PCM, generated all VE tables.
Tramsmission - Jaguar 8HP70 swap with standlaone TCM.

Issue: truck starts and dies after second or two like VATS is still on. getting code for MAP sensor range performance and U0100 code.

Any ideas what might be wrong ?

best regards

[TheMechanic]

Did you change to a 2 bar map sensor?
You didn't change the Linear or the offset to a 2 bar sensor.

[wasyl]

no, still on stock MAP sensor, MAP is set to 128,38/-0,31 , MAP code is not showing anymore, it shows 100KPA in scanner with KOnEOff

[edcmat-l1]

2 things. 1, you need to set your MAF DTCs to MIL on first error and uncheck the SES box. 2, your VE numbers are based on GEN3 (100) numbers. That won't work on GEN4 stuff.

Between the 2 that's why it won't run.


GEN4 VE.jpg

[wasyl]

do you konw what base VE map i can use to make it run ?

[Alvin]

2 things. 1, you need to set your MAF DTCs to MIL on first error and uncheck the SES box. 2, your VE numbers are based on GEN3 (100) numbers. That won't work on GEN4 stuff.

Between the 2 that's why it won't run.


GEN4 VE.jpg

good catch.

OP if you get a stock file and look at the virtual VE that will give you a range you'll be looking at. You'll have to transpose the tables to fit the 2 bar OS. BTW. You can change the axis on a 2 bar OS to something more useable.

the numbers will be 600ish to 2600ish.

[wasyl]

ok i generated VE table and it fires and idles but lower then then set in table, thanks a milion

[wasyl]

update, i found that if i set engine>idle>airflow>min fail to 80 it idles fine when hot

[edcmat-l1]

Post the current tune file after your VE change. And a data log.

[wasyl]

will do tomorrow, thanks in advance for the help