robs99si

would the check engine light comming on cause problems?

StanB

Yes

StanB

I am thinking about using something like a check value(s) to hide the boost from the MAP sensor or an electronic boost controller to reduce the boost to about 10-12psi. I am also thinking about using UBERDATA. I have a spare P28 computer. I just need someone who is very knowledgeable about the programs to set it up for me.

StanB

Whenever the light comes on, the computer goes into "limp mode." In this situation, the computer will try to save the motor and in doing so, it reduces the timing and dumps more fuel into the system. It dumps more fuel to prevent the car from running lean. I have already reduced the ignition timing from 16 degrees to 8 degrees. Just image the performance when the computer starts to take away more timing.

I hope my analysis is correct.

robs99si

i think limp mode is whenyou can't rev your car past 3000rpm. you get rid of limp mode by resetting your ecu, disconnecting the negative battery terminal for 20 seconds and then reconnecting it.

beerbongskickass

Defintely go with uberdata. My map should get you running pretty decent and give you something to tune from (check the uberdata site for more info). I would think at 15 psi you would make at least 250+ whp though with your setup, I made 230whp/208wtq @ 12 psi with the basically the same turbo (t3 60 trim .60/.4. How do you like that zex cam compared to the stock cam? I am thinking about getting one of those.

StanB

Beerbongskickass,I was just hoping for figures like you.

After the second run several adjustments to the air/fuel ratio were made but we could not get another run completed without the check engine light coming one. As soon as the light comes on, the computer showing the performance went out of control. The graph was like a roller coaster ride from about 4500rpm up. I know I should get more HP so it looks promising. The tuners told me to fix the check engine light issue and come back. I am thinking about getting a missing link. Any suggestion will be greatly appreciated.

The 59300 ZEX cam is awsome. Big difference over stock. I am definately think about UBERDATA. I am going to read the information posted to understand how the program works.

FooK

You're definitely running into a map sensor issue. Normally the stock 1 bar sensor is only good to around 11-12psi. Go with Uberdata and you'll be happy, just run Pat's bin til you can get it tuned.

StanB

Could someone please tell me where I can get a "missing link" for a reasonable price? I found a place name Inline Four but they want $58.00 for the missing link, and about $13.20 to ship by UPS, three days delivery. I think this shipping cost sucks.

Any information/help will be greatly appreciated.