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Yes I understand that. I am wondering if any parameters would be missing in a uhaul truck e38pcm vs a 2013 silverado? Is it likely I will still have all the available functions and pins of the pcm? I...

Hey everyone! Have not been on here for some time. Ive only tuned a 2000 pcm with 1bar OS so you can understand my concerns below.


Working on another project and I am sure someone can clear...

Im running windows vista 32bit and the vcm scanner wont let me resize or change my gauge layout in my custom configs



this happened after updating to 2.24?



anyone please help - half my...

ok great. I wasnt sure weather my SD write changed these settings(dont know why it would)... just making sure

i will go back to stock here. enable Adapt over 176F and disable over 284F with...

Ive been comparing my cam tune ive been working on to my stock settings and it appears that my adaptive idle is set to not update at ALL on my cam tune..... Did I set it this way and forget??? Is...

so im finally driving my car again because of the weather and decided to take a stab at cam surging.


Ive decreased my main spark table to 28degrees from what use to look like 34-38 anywhere...

:doh::doh: I removed my MAF histograms but forgot to remove it from the main Table

this did the trick.... thank you Russ

the factory tables for spark are in VE with airmass calculations..... when I wrote the new OS speed density, it kept that same layout and it appears that it is cut down to MAX .44 g/cyl


so your...

I switched to 1bar speed density OS and now I am logging AFR on a different air mass scale. In other words, timing at .08 g/cyl isnt the same as in my Tune file. My table in VCM scanner maxes out...

good idea.... i will give this a shot next time I work on the car..... i would think pulling the TCS module would keep it from sending the 5v signal under spin... but maybe bypassing and sending a...

im sorry..... i meant the car is taking 4-6% fuel away.... trims are in the GREEN.... so good there. my VE table is smooth

honestly fooling with cracker and follower hasnt seemed to have ANY...

another idea i thought of is using TCS to pull timing because the TCS timing retard table is so good.

the big question is how the TCS module works with the computer and how to kill all the other...

this works for a wet shot too???? I would think the fuel would eat the IAT sensor

Any way with HP tuners to have the car pull timing on the shot?


I know there are methods on a dry shot using IATs and cyl airmass but none for a wet shot.

can I use the interfaces Output...

yea I just set the cracker to 15+ just to check if that was the problem. I will try the methods you state above. No surge above 0% throttle. Good info, thanks

just for reference, If i am...

So i set throttle cracker to enable above 15mph..... and im still bucking pretty harsh if i try to roll in 1st under 15mph.....

Heres my log and config so you guys can make something of this....

Great. My ltfts look good (slightly NEGATIVE trims) so taking air away from the cracker might get rid of the 0% throttle bucking????

thanks for all the help everyone.

I copied my spark tables and smoothed the whole table some..... the car drives NOTICEABLY better..... great progress. the car use to cruise on the highway at 1500-1600 with some bucking.... now...

good thought. my underpeed spark table looks good I think. I noticed there was an extra table for underspeed, otherwise I would have made a valley at 925 where it idles and high spark values...

i started with a good timing table from a pro tuner, then I moved on to the VE, then WOT VE, and since im SD i get to skip the MAF

my fuel trims look good +4 to +8 and the car idles nice when...

So theres no point in keeping the low octane table different than the high octane table?? as long as a put quality 93 in all the time? I thought the idle and park table were for auto cars

heres...

great.... just needed a round about idea of how much timing you guys really pull to get rid of the surge.... im going to keep pulling until it goes away. Im still at around 28 and 30 for my decel...

So i finally dropped the hammer on a cam

tsp 232/234 on 111 lsa

running SD closed loop



So im almost finished VE tuning including WOT and im now working on cam surge. Ive already pulled...

frost..... any ideas on my closed/open loop dilemma..... im sure cleaning the VE up will take car of the problem.... but does the car switch in and out of open loop sometimes....???