help me get this thing running right

[big reazon]

Just got my new combo up and going and it is running bad. The main changes are cold air intake, .020 over pistons, raised compression to 9:1. Here are my scanmaster numbers
af 07
l8 43
bat 13.7
int 128
bl 142
clt 162
ats 108
r 925
tps .42
iac 58
mal 23

What needs to be done?

 

[TurboTnZ06]

First off, google buick scanmaster code 23. Start there. It may not be plugged in.

http://www.gnttype.org/maint/quickref.html

Code 23:
Air Temp Sensor low. The first thing to check would be to make sure the IAT sensor is plugged into your K&N or airbox. If it is un-plugged, it will set this code.

 

[TRICKSIXPA]

I would next look at your baselines the RPM's are a bit high for Idle and IAC is definitely too high. below I put the link for the IAC reset procedures. After you get that situated then you have to find why your BL is soo high.

http://www.gnttype.org/techarea/faq/IACreset.html

 

[TurboBuRick]

Make sure all coupling connections are secure between the maf and turbo. Also check all cooler couplings.

 

[highboostgn]

Any more info besides just "running bad". Running bad at idle? Normal driving? Under boost?

 

[big reazon]

So i found that my iat wasnt installed. So i will get that plugged up tonight. The car scanmaster numbers are way lean. The car idles kinda rough and has a bad hesitation on take off. It clears up if my o2 numbers get into the 650 to 700 ranve. This thing is running way lean in my opinion in the 450 area.

 

[big reazon]

So i found that my iat wasnt installed. So i will get that plugged up tonight. The car scanmaster numbers are way lean. The car idles kinda rough and has a bad hesitation on take off. It clears up if my o2 numbers get into the 650 to 700 range. This thing is running way lean in my opinion in the 450 area.

 

[Pronto]

Check for vacuum leaks.

 

[Eric Stage I]

What exact MAF are you using, and what are the settings in the Translator box?

 

[big reazon]

What exact MAF are you using, and what are the settings in the Translator box?

I am using the ls7 maf my translater settings are on on on off the base 9 then wot 0
Just tried a lt1 maf and changed the translator to 3 " settings no change.
Do I need a new chip for the 9:1 and 20 over pistons I changed from stock pistons to wisecos

 

[we4Mateo]

Just got my new combo up and going and it is running bad. The main changes are cold air intake, .020 over pistons, raised compression to 9:1. Here are my scanmaster numbers
af 07
l8 43
bat 13.7
int 128
bl 142
clt 162
ats 108
r 925
tps .42
iac 58
mal 23

What needs to be done?

I'm guessing vacuum leak for the BL's. It's adding fuel at idle and that may make it run poorly if artificially lean/vacuum leak. Is this a fresh install? Crank and cam sensor all set well?

 

[big reazon]

Just checked for vacuum leaks and came up with nothing. Even tried to bypass the translator and put on my stock maf. No bueno.

 

[earlbrown]

Crack in the driver's side header been fixed yet?

 

[big reazon]

Crack in the driver's side header been fixed yet?

Yep

 

[phil_jordan]

WAAYY off subject, but that Malibu is clean man!!! Sorry for interrupting

 

[GNRick]

Just checked for vacuum leaks and came up with nothing. Even tried to bypass the translator and put on my stock maf. No bueno.

How did you check for vacuum leaks?

 

[big reazon]

How did you check for vacuum leaks?

Ran over everything with propane gas and listened for an idle change. But I think I found the problem fuel pressure dropped swapped regulator out car seems to run fine now.

 

[TurboBuRick]

Sounds like your getting un metered air or not enough fuel.

Did you check your intake couplings?

What do the plugs look like?

Rick

 

[big reazon]

Before when the car was running rough the plug was black but the center and half of the ground strap was tan.