rc3932

okay so i cut, muffler clamped a cat on for my etest
passed everything else nicely... way below the limit
but I doubled NoX.

The car is 93 mazda b2200. I called the dealership since
i couldn't find EGR parts for my car at partsource and what not...
they told me my car doesn't have an EGR...

I kinda believe them too because when i had the car jacked up
i couldnt find anything coming out of exhaust manifold...

any suggestions?

Supra90T

Retard timing, run lots of methal hydrate

rc3932

is that one of those octane booster?
i really need this thing passing, i don't know to me the car sounds like
it runs mint it revs up good and what not...

Supra90T

No, it's methal hydrate...essentially 100% alcohol
It minimizes hydrocarbons which will go up as you retard the timing
Retarding the timing of course, will mean less heat is created..which will lower NOX

rc3932

ooooooooo i thought u meant retard timing as in like whack timing lol
mannn this etest is running me through soooo much stress
this is ridiculous though, how MTO set a NOX limit to a car that does not have
an EGR valve... maybe the guy at the parts desk was wrong?

..77.

Set the base timing at half the spec calls for . 2 cans a gas line anti freeze in a tank over half full, drive it around for 1/2 an hour . go e test it .if its got a lotta K,s on it . Dump out a litre or a little more of oil to get the oil way from the rings and cyl walls . It wont hurt just for the etest ..77.

rc3932

ya eh.. so that's what it comes down to... fooling etest system.
I tried to be honest spending all this money... well i don't mind that much
because i'm pretty sure it made my car run better but still i never needed a cat..

Anyone know a guy that does hot Etest? i'd look into the the method..77.
but i dunno how to set the timing lol