PASSED!!!!!!! It's about time! It was a bad CAT. meow! Thanks for
everyone's help and advice!!!!!
On Wed, Jul 30, 2008 at 9:03 AM, Mike Guzinski <mguzinski@gmail.com> wrote:
> Well, failed again after I flushed the cooling system and replaced the
> O2 sensors. THe leveles didn't change much but did get a little
> worse.......I'm going backwards here! I was trying to do the easy
> stuff first to see if that would fix it. The truck is back to stock
> specs not except for an electric fan and a K&N cold air. I have the
> CAT to install and going to pull the intake manifold and replace the
> seals next. This is getting frustrating but gotta be done I guess.
> Any other ideas out there? Besides leaving the keys in it in the Wal
> Mart parking lot?
>
> On Sat, Jul 19, 2008 at 5:56 PM, Bernd D. Ratsch <bernd@dodgetrucks.org> wrote:
>>
>> His HC and CO would be higher and it's not.
>>
>> - Bernd
>>
>> -----Original Message-----
>> From: Brian [mailto:hskr@cox.net]
>> Sent: Saturday, July 19, 2008 3:53 PM
>> To: dakota-truck@dakota-truck.net
>> Subject: DML: RE: Failed Colorado Emissions High NOx A little long....
>>
>>
>> For starters, I'm wondering hy you went to a higher octane fuel to try and
>> pass emissions. The higher octane will burn slower resulting in more
>> unburnt fuel entering the exhaust. I'd try running a couple tanks of the
>> lowest octane you can get through and trying again.
>>
>> brian cropp
>> -----Original Message-----
>> From: owner-dakota-truck@bent.twistedbits.net
>> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Mike Guzinski
>> Sent: Saturday, July 19, 2008 2:20 PM
>> To: dakota-truck@dakota-truck.net
>> Subject: DML: Failed Colorado Emissions High NOx A little long....
>>
>>
>> Hey all,
>> It's been a while since I have done much on the list but now it seems
>> I am (or Air Care Colorado is) having a problem with my 99 Dakota. I
>> have a 5.2 L 4x4 with a K&N FIPK Mopar Performance PCM MSD wires,
>> brass cap and roter, Viper electric fan, 180 deg stat. I don't put
>> too many miles on this a year, My daily driver is an 06 Magnum R/T.
>> Here are my results in the 3 yes 3 tests I failed!
>>
>> The first test I had the oil changed and cleaned the K&N and put in a
>> quart of denatured alcohol in the tank with 4 gallons of gas. I ran
>> it up to temp for about 45 minutes.
>>
>> Reading Limit
>> HC GPM 0.6615 1.2 Pass
>> CO GPM 8.5833 15.00 Pass
>> CO2GPM 520.8941
>> NOx GPM 2.7288 2.0 Fail
>>
>> The second test I installed new factory spec NGK plugs gapped to .045.
>> I put in a bottle of B&G 44k then I ran the tank of gas down to about
>> half a gallon and refilled it with 10 gallons of premium 91 octain.
>>
>> HC GPM 0.8090 1.2 Pass
>> CO GPM 6.6932 15.0 Pass
>> CO2GPM 519.0306
>> NOx GMP 2.6831 2.0 Fail
>>
>> The third time I took out the 180 stat and put in a new 195. I took
>> out the Mopar Performance PCM and replaced with the factory PCM.
>> Regapped the plugs to .040 which is factory spec. I followed the
>> reprogram procedures on the list for the OBDII. I also checked the
>> cat, it "appears" to be good and I also checked for vac leaks. I
>> looked for the EGR valve...lol....there isn't one.
>>
>> HC GPM 0.9292 1.2 Pass
>> CO GPM 11.3572 15.0 Pass
>> CO2GPM 512.0061
>> NOx GMP 2.9614 2.0 Fail
>>
>> I also looked back to see what my truck was at on my older emissions
>> test from 2004 and 2006 Here is what I got:
>>
>> 2004
>> HC GPM 0.8641 4.0 Pass
>> CO GPM 12.6890 20.0 Pass
>> CO2GPM 511.1926
>> NOx GMP 2.8967 9.0 Pass
>>
>> 2006
>> HC GPM 1.6168 4.0 Pass
>> CO GPM 17.8321 20.0 Pass
>> CO2GPM 512.0025
>> NOx GMP 4.5176 9.0 Pass
>>
>> Now they toughened the standards since 2006 and on the new tougher
>> standards my truck would have never passed. Now it has 158000 miles
>> on it and it's cleaner than it was when it was only 4 years new. I am
>> just finding nothing that will change the NOx levels at all. Could it
>> be the CAT? Wouldn't the other leveles be high if the cat was bad? I
>> have never had any check engine lights and does not show any codes.
>> Any suggestions you have would be great.
>> Thanks,
>> Mike
>>
>>
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>> 6:35 PM
>>
>>
>>
>>
>
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