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Camaro bin, tune from there. Purchase or build a voltage clamp for the MAP sensor.

:shrug: I must have hard wired mine in...

For those with MAFs having integrated IAT sensors (5 wire plugs) who cannot disconnect the sensor, zeroing the MAF transfer function and setting the fail frequency to zero will produce accurate...

If you're wondering the difference between the two PID equations check this out:

http://img89.imageshack.us/img89/2376/aerovsautotc8.png

The green line is the Autometer PID, Black line...

That menu is the submenu of the Configure User Defined when inserting a PID into an EIO output. The VCM scanner will not allow access to the Configure User Defined menu if a scan is open.

Load...

I rechecked the Aerofore instructions and the PID I stated in post #33 was incorrect.

They give 31.9 as the slope, and -9.7 as the Y intercept, so equation would be y=mx+b or 31.9*Volts+-9.7. ...

No doubt.

EDITED for the wrong PID. PID should be Volts/.0313+-9.7 for the Aeroforce FP kit.

Eddie - Those tests when active would change spark, and commanded AFR.

(I run the factory torque management settings and have never had an issue @ 330whp with any injector cut sans burn outs)

The closer the mounting position, the more cylinder to cylinder variation you may pick up. May have had slight detonation which may contribute to varying combustion quality - varying the oxygen...

Fuel pressure is low enough...lowering it even more will just lower overall fuel delivery leaning the car out. If you want to throw parts at it, start with a Racetronix Pump and GP Sorenson...

Hrm, something is definitely not right if you're experiencing misfires.

This is where the "art" comes in. You are correct, the startup AFR correction factor is for initial cranking, then the switch to MAF, if failure, stall. On Restart, switch to MAP (VE) table.
...

The fuel pressure is definitely low, which is why the MAF curve is a bit funky -- however I don't think the lean spike is the result of a fueling problem as the rail pressure is consistent, low, but...

Few things:

Is there any way to put the 3.4" pulley from the 97 onto this car?

What is your spark plug gap?

VE has the largest affects on AE and DE...

On 98s it apparently is used as a sanity check - drive the car a few miles with a zerod VE table, it will cut out, set a MAF DTC, and will not start...

11,500hz freq

As long as commanded AFR = actual AFR, you are in 100% in control. By adding additional fuel demand to the fuel system (injector duty is +10% in this scan) we should see the rail pressure drop, but...

MAP and MAF continue to increase with RPM, and limitation starts at 116mph, spark cut at 120mph...

Keep in mind:

The wideband is collectively measuring the output from all cylinders
The knock sensor is a fail safe system, not a definite tuning tool


Here's what I'm thinking: pressure is...

There should ALWAYS be a CONSTANT pressure differential between the intake manifold and the fuel rail. The factory regulator is 3.5 Bar, its stamped right on it, clear as day. 3.5 Bar = 50~51 psi. ...

My fault - shitty connection here, double posted.

The key is a systematic approach. There are multiple things going on, the trick is to isolate them, understand their affects, and calibrate them...

You got it. The trick is to start small and work you way up. You want the motor to fire over on the first crank. This could mean 2x, 5x, or even 15x the fuel content.

Here's a quick rundown on the mechanical side of what's going on mechanically at a cold start, defined as IAT = ECT

With the motor cold, the internal clearances are respectively more then when the...

Go to a Racetronix Walbro and the GP Sorsesen FP Regulator, base pressure 50-52, WOT should be base + boost pressure. You want to always have X amount of pressure differential.

Are you referring to a cold start? ( coolant temp = intake air temp )