Would the new chip help me pass emmissions they cut the standards in half and I think i'm going to fail. Did any of you guys notice a difference in emmissions? I have the IM240 dyno test.

 

****Properly**** tuned shouldn't make much if a difference, it's the engine mods that'll get ya. Too much overlap is hard to get thru the test.

There are a bunch of 10 sec GNs that do the test all the time, again with the cam qualifier.

With alot of overlap, the engine has alot od self indused EGR. Aot of EGR takes extra fuel, and timing to run at idle, both if which are bad for passing the test.

A good new converter can work miracles.

Again there are other items to have right.
At *least* a 180 thermostat.
Fresh oil, and correct PCV valve (they vary alot even by brand).
Having the engine throughly warmed up.
New Plug wires, and plugs, and the rest of the system in tip top shape.

If your on top of your game, the test should be a drive thru.. But lots of folks let things slide, or figure it runs OK, and never worry about having it RIGHT.

I know I'm harping on things again,
clean air, and hot rods should be alot closer to being mutual rather then exclusive.

 

The car is 99% stock. So you couldn't burn an "emmissions chip" that was lean and then change it back to the normal one.

 

Lean doesn't mean passing emissions. Too lean drives the HC out of sight.

If the chips uses closed loop, it's going to be running at 14.7 anyway.

Try to get it pretested and figure out what to do.