othman

Welcome to my friends
Please help me I have a 1995 Camaro and put 306 comp cam and headers and tuneing but the car runing whti wideband 10.25 so rich i have tunercat but i do not know how to lean the car i Changed a fuel pump from stock to Flow:255LPH
and i but MSD distributor can any oue help me whti tuning ?

othman

when i changed a fuel pump and the distributor i did not tune et

Injuneer

Changing the distributor (MSD not the best choice) and the larger fuel pump do not require a tune. The CC306 does. Did you upgrade the injectors? Did you alter the timing screw on the MSD in any way, or did you verify it was in the correct position?

Look at the "Stickies" in the topic listing for this forum:

https://www.camaroz28.com/forums/com...stants-159266/

There are numerous online tutorials for tuning.

The alternative is to get a mail-order tune from someone like pcmforless:

PCM for Less

If it's 10.25:1 at WOT, you have to use the PE (Power Enrichment) tables to reduce the target A/F ratio.

othman

Thanks for the reply
stok injectors
I have not changed anything on the msd distributor
i did change down %2 from PE (Power Enrichment) tables
But I do not see a difference
This is the file

Thank you

Injuneer

Which PE table are you using - there are two:

PE % Change To Fuel/Air Ratio Vs. RPM

PE % Change To Fuel/Air Ratio Vs. Coolant Temperature

Somewhere I've seen a formula for using these numbers together to effect the A/F ratio change. Check the TuneCATS help file.

othman

i us % Change To Fuel/Air Ratio Vs. Coolant Temperature

But I read this topic Do you think this method is correct
This is how I set up the PE tables to command a 13.0 AFR at operating temps on the LT1/LT4 cars. Then scale the Maf so the actual AFR matches.

Also enter 14.7 in all cells above 68*C in the open loop AFR vs coolant temp vs map table.

Russ Kemp
Attached Thumbnails
(% Change To Fuel/Air Ratio Vs. RPM)

13qtr

little confused here...the screen shot header pic says 1996 corvette. The file your uploaded is a 95 camaro. Also the fuel tables in the uploaded file is not the same as the screen shot. On the file..I see 12.5 commanded at wot at 4k rpms,and 13.2 at 5200.

Injuneer

Not the only confusing thing here..... he posts an emoticon of a Canadian flag, identifies himself as Russ Kemp, and is posting from Saudi Arabia IP addresses.

13qtr

I haven't got access to that kind of info..

othman

dont be confused my car is a camaro bot Copy the words of (ress kemp)
To see if I can do like him .
you see my file ?
What can I do to lean the fuel

othman

I did not impersonating Ross Kemp I want to know if I can, I do like him to lean the fuel

Injuneer

When you quote something written by someone else, you are required to use "quotes" and cite the source. All you have done so far is cause confusion.

othman

Can you help me with tune know or not

Injuneer

At this point, I am only acting as the site moderator. As long as the thread stays under control, and if someone else chooses to help you that's fine. I've given you info. You have to follow up on it. Did you download the TunerCATS guide, with help section?

othman

thanks for help

I do have TunerCATS and I have seen what you mean But that did not do anything the car is still run rich