Mik

Primarily 1Gen

For those of you that have an A/F gauge hooked up, what are you reading with stock and GTX injectors? Once the engine warms up does it stay at one ratio or does it oscillate?

Here is what is happening with mine. I'm running the stock N/A computer btw.

GTX 330cc injectors - runs really rich at idle (to be expected) . During cruising is goes between rich and lean when it hits boost.

Regular N/A Protege injectors (what flow are these 230 or 270?) - Once warmed up the gauge oscillates between one light rich to about two or three lights in the lean. Is this normal? Obviously I keep away from boost with the small injectors.

Any explanations would be appreciated.

elscotto80

I haveone hooked up to my 91 GT. Its not turboed but at cruising speeds its goes stoch. to 2 lights on lean then once in a while it goes to the rich side.

Mik

Sounds just like mine then. Thanks man, I was a little worried about the lean status.

Actually I made my lazy *** look through the manual and there it is, it should vary between 0.9V and 0.1V.

elscotto80

That GTX looks really nice. Do you have an AIM sn. I am turboing my 91GT and i have some q's. Thanks so much.

limpgtx

the a/f gauge only works at WOT. when you go full throttle it should stay in the rich spot, umm .9v i think? this is on a autometer gauge right?

Mik

What is an AIM sn?

elscotto80

Instant messenger. My screen name is elscotto80.

Farsyde

it is accurate in more than WOT. However it's very finiky and you have to know when to trust it. My bro's accord shows pretty lean for idle, about 2/3 stoich during WOT and almost any rpm over 3500 it reads relatively well in stoich with the occasional blurp into rich/lean.

Mik

Indeed, this weekend I installed my RRFPR and it works like a charm. At full throttle it runs just a little bit rich with the N/A injectors at 7psi.