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I really don't understand!, I've added turbo to my LZ4 with E38 ecm ith 60lb/h injectors but I'm not able to get the open loop rich.......... I set overboost to 0,8
I reduce injctors flow to...

In the map I found in the ECU the Speed Density was not active and all works on MAF mode

It works quite well especially after I tune the MAF properly, but should I activate SD or not .....which in...

thanks for your reply

I know that E38 can manage a second iat (one in the MAF and a second after turbo I just added).

I would need to know which pin should i connect the second and how to use it (I see the possibility...

I'm adding turbo in my Chevrolet LZ4 and iat is in the MAF

I'm thinking to move in the pressure side, after the intercooler....what do you think?

which sensor do you suggest to use?

Thanks

I agree this is the right way to proceed !
Thanks

Paolo

I really don't understand

my swapped LZ4 with E38 has a big difference in wot between AFR commanded vs acutal read with a wide band sond......

should be 12 and is 14 or even leaner.......
...

Yes I did noticed , so probably it is the right input

I had the same doubt the pin41 is labeled as Signal High maybe they refer to speed sensor but they do not write VSS.........


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in the 2009 diagram I dowloaded there is VSS only for LS4....
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I'm in the process of adding a turbocharger to a v6 LZ4 3.5 with 10 psi boost target

I'd like to have, a starting sparking advance map tested in similar engine safe from knocking to start the...

At the end I succeeded with alldatadiy.com

I'll try thanks

In any case on saturday I tried to connect to the GM site to dowload but I did not succed I try again today but when I try to pay accept the payment at first but then decline........so I have no...

just tested this weekend, really works fine!!!! thanks

probably I'm not so smart...........

bytheway I didn't do the swap I just bought the chassis with the swap already done by someone I don't know and I built my car over so even trying to understand...

I got in this issue with my E38 LZ4 from an impala 2009

in VCM scanner reading spark advance [sensor] at high revs and high load I never read more than 24?...............

Then I did some test...

ok thanks

I need impala 2009 pcm pin out to find where are A/c compressor pressure sensor input to use as wideband O2 input

Thanks for your help

Paolo

I got in this issue

in VCM scanner reading spark advance [sensor] at high revs and high load I never read more than 24?...............

Then I did some test (disabiling correction etcc......)...

thanks

In my LZ4 E38 i'm going to add a turbocharger
i've bought a 2 bar sensor as shown in picture attached

Apart from boost OS patch to install which is the value I should put in the sensor...

thanks

Thanks I’ll do!

I've tried to put all correction tables to zero but no effect! alvaws 24? at high revs!!!!!!!! the gear read is 1? even and zero speed since no VSS is installed and gearbox is manual even if a TCM...