3400 passes emissions test with no modifications

[Cliff8928]

Just thought I'd let everyone know that to my surprise, my 3400 in my '89 Beretta passed the emission test today. It was fairly close to the limit, but i didn't even expect it to pas with NO modifications at all, still running the original 2.8 chip. I've also been a little lax about changing the oxygen sensor as well, (as in, the 7 years i've had it i never changed it).


Cliff Scott
89 BerettaGT <- Good on emissions until 2007
04 AleroGX

[korbendallas68]

Pretty cool. How does it run with the 2.8 chipset?

[Wolf]

nothing better than getting passed the emission nazis

[geoffinbc]

Lloyds 1990 3400 passed better than the 3.1L

[Cliff8928]

It runs acceptably on the 2.8 chip still.. I'm sure it's not optimal, but no stock chip is. I was just surprised that it passed the "IM240" test before the whole test was completed... now that i think of it, that is better than the 2.8 did.

However, i do need a new ECM and some other stuff. out of the blue i'll lose any power whenever the accelerator is off idle, I just have to reach over and tap the ECM then it's back to normal.

Cliff Scott
89 BerettaGT
04 AleroGX

[Cliff8928]

I scanned in the results if anyone cared...

http://home.comcast.net/~cliff_scott/emissionlog/images/2005.jpg

Cliff Scott
89 BerettaGT
04 AleroGX

[86JeepXJ]

Interesting test results..... Check this article out. You may find it helpful....

http://www.wellsmfgcorp.com/counterpoints/counterp_v7_i1_2003.pdf

[patgizz]

which injectors?

[Cliff8928]

My injectors are what were in it. I didn't loosen a bolt on the engine i didn't have to. The engine was from a '99 Alero, so they're the Multec design (the style used from 87-99)



Cliff Scott
89 BerettaGT
04 AleroGX