what he said ^^^^ it fakes it out, sometimes you need two of them, but it should work.
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09-24-2014
what he said ^^^^ it fakes it out, sometimes you need two of them, but it should work.
09-24-2014
The cat test I thought was the car running rich for a bit or however long then looking for it on the rear 02 then it was happy. Which would make the sim not work because it wouldn't read the car running rich so it would be stuck always on. But i have no idea how accurate that is, thats how I've thought it was.
Sent from BFE
09-24-2014
Iv gathered that from this post
http://www.grandprixforums.net/threa...ou-should-know
Sent from BFE
09-24-2014
seems the sims are hit or miss for you 01 up guys. http://www.grandprixforums.net/threa...uld-know/page2
why not just run a cat? and a res, the res will make it sound better vs not having one...thats been proven
09-24-2014
Hm. Good thing both my cars are 00 haha
09-24-2014
I would pass on the sim.. I wouldn't want to screw around figuring out how well it is or isn't working. Seems like a waste of time and potential money if it goes bad after a little while... I would just replace the cat or clean it out. I changed up my exhaust and actually welded on my old cat because I didn't want to run into these similar problems but was able to eliminate the u-bend which is really what puts a damper in performance.. Not that our cars have much of that anyways..
09-24-2014
If its working no CEL, if its not working, CEL. Pretty standard stuff.....
09-24-2014
Why is that?Originally Posted by SnowTh1ef
Cat test on 01+ cars can be tuned out with dhp/tiny tuner...
09-24-2014
Because I don't own a tuner. and one car has it tuned out, the other has a sim in it.
09-24-2014
you can tune the codes to not report, but 01 up years keeps f ing up and causing the fuel trims to be off.
09-24-2014
did you look at my post above?
09-24-2014
did you read the link i posted? they all pretty much said it still sends off poor ltft's. sim's can help, or not. the 01 is different then the 97-00 cars as far as the rear 02 goes.
09-24-2014
No
You still havn't looked at my post close enough.
I'm not just talking about setting the rear o2 to no report with dhp
With Tiny tuner you can set the number of cat tests per trip on an 01+ car to zero
Therefore no cat test happens and no extra fuel to screw up the LTFT's
09-24-2014
if that works, post that to that thread there lol
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