Rev Den
NAXJA Forum User
- Location
- Plainfield, IL
Did I miss something? 180 is too cold.
Sposed to be about 210.
Rev
Sposed to be about 210.
Rev
Rev Den said:Did I miss something? 180 is too cold.
Sposed to be about 210.
Rev
Bryan C. said:Why is 180 too cold? Excess heat causes high NOx. The computer needs to see the temps above 170 to go into closed loop. My junk passed with a 180 t-stat.
Aren't you in the wrong forum anyways? :wave:
Rev Den said:As far as you forum comment...nope, this is my forum I am a member of the Sierra Chapter.
Rev
ChuckD said:Well when driving back and forth it was around the 180 mark on my highly accurate OEM gauge. When he did the test it was at 210.
l4cl4c, you mentioned the TPS, and said you got yours to run sweeter. Do you know this for a fact, because with your mods I would have guessed you should have upgraded your injector's. To make your engine run richer and keeping down the NOX.
Did your other numbers go up in the end?
Right now, I'm doing the most thorough cleaning I can. I pulled the injectors and three had some noticeable carbon around the edge, but no enough to cause blockage.
Now they are starting to look cleaner, I borrowed the Ultrasonic cleaner from work. I also picked up a pig tail, part#800-9213 from Autozone, and used my battery charger (I tried a 9v batt but gave up to quick) to activate the injectors.
I also sprayed down the injector and spark plug holes with cleaner. Then I'll run the Seafoam treatment down the intake and in the gas tank. Drive it for a couple days to work and that's everything I can do.
I'm very positive that I do not have a vacuum leak, sprayed starting fluid all around the intake and no idle change.
After this, I might have to upgrade injectors or something else to rich up the mixture.
Bryan C. said:Did you do the engine decarb yet? If there is excessive carbon in the combustion chamber it will actually increase your compression. Increased compression pressures cause more heat to be built up in the cylinder during compression and during the power stroke. Excessive heat in the combustion process is what causes the NOx emission levles to be high. So keeping your engine cool is the key. Even a small amount of carbon on in the cyliders will affect your emissions. Also tell me about your cat conv. Is it from a muffler shop? Is it a stock MOPAR replacment? Or is it a high flow style? Gary posted up something too that makes sense, a new cat can clean up your exhaust quite a bit, but for you to still fail after the cat replacement says something is really far off. Have you had the engine controller checked to see if all the sensors are reading correctly. Just because a code isn't set doesn't mean everything is good.
Boatwrench said:Chuck,
Congradulations. The BAR really has folks over the barrel regarding non-passing smog vehicles. Probably why so many go unregistered.
What did you do over the last six weeks that made the difference?
Thanks,
Tom