Emissions thread!!!
 

Alright I took me ej this second time and still didn't pass. First reading were HC(1.12) , CO(24.38), NOX(3.02) So I put a new dizzy, wires, spark plugs, and starter, and now it read this HC (1.08), CO (15.87), NOX(4.17). What could it be? They told me to check the timing. Anything else should I check for? Am running 91 and didnt do the alcohol myth. So am ???? Any info would help. Thanks.

Read through and get a lot of answers!

Thanks man. I went thru some of them but did find anything close to my problem.

Definetly check the timing and then check it again! Don't run 91 octane you only need to run 87. If you haven't changed your PCV valve then remove it and shake it, if it doesn't rattle then you need to replace it, that will help a lot(personal experience) regardless of what other people say! Oil change, coolant flush, new air filters! GL

But see the weird thing is that after I changed the dizzy, starter, wires and spark plugs. It didn't wanna run so good. it was running kinda rich so I thought I try 91. So this fucker ran better.... After that, it start over heating so I took out the thermis... fine. It was running great. Ide was normal. It didn't shake or anything. After they ran it again @ emmisions it start to run the same as it was b4. Also my sister took it to the store and put 87 and it sounds like a suba again. Lol I'll check the PVC and the timing. Thanks man.

when i did my car i had no problems... but it was totally stock back then... lol... but the alcohol thing works... or at least i know a few friends that have had problems and we used it and it helped

I give that a try once am close to goin again. Can't go thru the weekdays(work).

try to check your o2 sensors or the cat convertor cause what the denaturalized alchol does it warms up the cat when the o2 sensors are supposed to do that so check that

check the cat. your co reading tells you the efficiency of your cat. it looks like your cat has failed due to the car running poorly before for a long time. replace it and it will pass most likely.

Man, Im glad we don't have emissions yet. Hope you figure it out tho.

denatured alcohol doesnt do this.
it just burns very very clean thus helping to reduce the emissions of the engine.

Alright guys this is the third try. so here are the previous reading HC-1.08 CO-15.87 NOX 4.17 Now todays reading HC-1.22 CO-9.48 NOX-5.51 Now the standards are HC-1.00 CO-12.00 NOX-2.50. Anyone what this could be??

anyone?

did you mention that you pulled out the thermostat?...why did you do this again?

It was over heating

since then have you put it back in the engine? cause even though you remove the thermostat, yes it does cool it down. However, it makes the car over cool and tends to make the vehicle run richer than its supposed to..

Oh alright so i guess i have to put it back then. Cause the car starts and it ides kinda high for about 15 seconds. Then goes down back to normal. But how about the nox?

as for the NOX....what kinda spark plugs are you running?....

Bosh platum there like 3 bucks at autozone

ok your runinng a little warmer plug....Bosch is a brannd for Nissan and some Ford and GM models, yeah they have made plugs for Imports, however i recommend even though its pricey but if you want to run better, go with the stock replacement plugs...NGK actually make the car run a few degrees cooler....because NOX is caused by increased temperature in the exhaust gases..

Oh alright thanks man i try those couple things and give it another try on sat. Should i run it for awhile b4 i go take it for the test?

yes....and also too...most Bosch plugs dont come pregapped...you have to gap them...but yes let the car drive around for a while...

Alright thanks man!! :thumbup:

anytime