minho78

Hi I got this kit last year from autothority. After installing the AFR gauge and the boost gauge I got shocked at my AFR readings.

Aproximatelly 14.7 at idle.
16 to 17 normal driving.
14.7 to 15.6 at WOT.

I have new injectors FPR and it reads 39 psi on my fuel gauge at idle.

What are my solutions:
Adjustable FPR?
Maxhp kit?


Thanks

savvas944

adjustable FPR?

lart951

is it a wideband or narrow band?

minho78

AEM Wide Band.

hp18racer

Did you have AFR readings before putting in the Autothority stuff? Mine bounces around 14.7 when 'off boost'. If the factory O2 sensor is working it should be in 'closed loop' at partial throttle. If the rest of the system is working right the autothority setup will perform better than is indicated by your current readings.

minho78

I have no readings since I installed the MAF last March and the gauges yesterday. The O2 sensor was installed last year maybe I should take a look at the voltage coming out of it.

toddk911

Well, that sounds right if you did not have a chip or piggy back to adjust up the fuel. A MAF flows a lot more air than the stock AFM so you are running lean. Also, if there was a chip with it by Auto they are known for being to lean anyway.

You need a new chip or piggy back asap.

carlege

Slightly OT why would you install something without doing your Homework on what else needs attention?

(i didnt know) dosent qualify as a good answer

lart951

Yes, someone was selling a power perfect for $ 150.00 that will do just fine. Don't try adjusting your a/f ratio with a afpr that's not wise.

minho78

Todd, Mihn(Autothority guy) had these chips burned for me last March with another 944 turbo. Maybe the other guy had bigger injectors. There's other people out there running this kit and they are fine.

minho78

What you mean what else needs attention ? The car has almost been redone. I have no vaccum leaks. All sensors are new, even the calipers redone. ????
When I buy something new i hope it meets my standards.

minho78

Yup I think I'm going to go that route but before I'm going to call Autothority and I'm going to talk to Mihn.

JohnKoaWood

IF you want the most out of your package, you need a custom tune file tailored to your car as it is sitting...

There is a thread on here re: "do it yourself tuning", with the setup described there you can have a dyno shop build you a custom tune. negating your chips, OR you can get a piggy back (Mafterburner, etc..etc..etc..) and tune it that way...

You are TOOO lean at PT and WOT... get this rectified BEFORE your engine suffers a major break down, or after if you prefer smashing your head into a wall...

If you hit up Russel Berry he CAN make you a set of chips to match up pretty close to your setup, but it will only be a 99% solution... if you want the 100% right you will need custom tuning on a dyno..

minho78

Yeahh I already did when I blew the headgasket three months ago. It took me two weeks to get it back on the road. Yeahh maybe I should head up to Russell and maybe get me the MAXHP KIT. I have to be carefull now since I"m closing on a property and I'll be broke for some time.The wife already got all these plans.

carlege

So you bought this new from Authority and got the computer chips installed and its still running very lean?