Whats up with this file, FAST

[FastRegalWE2]

I logged a warm and cold idle file. Ever since I put on my 200AMP alt, when I hit the brakes (PM) or turn on the heat/AC the engine dies down for a second.

If someone can take a look at the 2 Id be forever in debt, wait I own a Buick, so I already am

 

[EightSecV6]

I logged a warm and cold idle file. Ever since I put on my 200AMP alt, when I hit the brakes (PM) or turn on the heat/AC the engine dies down for a second.

If someone can take a look at the 2 Id be forever in debt, wait I own a Buick, so I already am

alot of times OLD Buick wiring (grounds) will cause what you are experiencing. The ECM is probably seeing a blip on the TPS or MAP sensor causing it to add/pull fuel. Create a dash and log the TPS, MAP and engine rpm as well as actual A/F ratio at 20 frames/sec and tap the brakes to see what they are doing. Post back the results.

 

[FastRegalWE2]

i posted it up on the other one... thanks
that was some typing...

 

[Craig Smith]

Don't forget to add battery voltage to the log!

 

[FastRegalWE2]

already on my dash