Recent content by imaboa

Playing is fun :) When you say a 'modern chip', what do you mean exactly? I suppose if the timing is locked in at X* after 4800rpm, and the same with fuel, thats probably ok since the VE of the motor falls off as well. Providing the boost doesn't creep up substanitally in the last...

Mind if I interject and ask a quick question? I'm doing my reading before attempting to tune the stock ECU in my dads GN, I noticed that the spark table only goes up to 4800 rpm, although in the particular file ive been working with the rev limiter is set to 5700. Where does the ECU look...

Found it. If it were a snake, it would have killed me three times.

I'm looking around and not finding one...

I'm looking for an ECU pinout for an 86 GN, anyone know where I can find one?

The version of BigStuff I had loaded on my machine is corrupt. I'll reload it and let you know what I find.

Correct stoichometric but as far as the oxygen sensor and software is concerned, if the Stoichiometric AFR for gasoline is used as the default in the software, then 14.7 would be the correct value to put in the table (it would give you enough fueling to acheive a lambda of 1). If you have...

BS3 Trans Control Does the Big Stuff 3 perform any transmission control functions?

14.7 should work for the fuel setting, the oxygen sensor is reading the oxygen content in the exhaust stream. You are still aiming for a Lambda of about 1 (or a Gasoline A/F Mixture of 14.7) for cruising.

Where would I find the connector that I circled in the picture? I have a Haltech that I would like to wire into my car, this would make the wiring pretty simple.

I would guess, that depending on the Engine Management Software, not having a correct injector dead time entered into the map could give you a mis-calculated injector duty cycle. Not the cause to your problem, but a reason that you may see injector duty cycles over 100%.

Chip Tuning 101... Which Scalar(s) would you use to do something simple, like an injector size change? Injector Constant looks like a pretty good place to start? Or are there other values that you should change at the same time.

I've just started looking at the ECUs in these cars a few days ago, so forgive me if I'm not up to speed (I've only had my car for about a week now...) Can you put the computer into a MAF fail mode and use the pressure sensor for all your load calculations?

What kind of o2 sensor are you using to measure AF Ratios?

I tired that definition file, and still get zeros in all the bins I've looked at. See attached screen shot. Any thoughts?