trucks with no cats, I need some help
#1
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TECH Apprentice
Joined: May 2004
Posts: 330
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Well I think, may have done it now
Was at the exhaust shop. May have gotten too greedy, have no cats now. So wanted to do some ve tuning notice some cells +7 range. but cutouts are nice easy to get to.
But as soon as I get over 2300rpm, REDUCE ENGINE POWER, and get a code :
"airflow to tps signal corraltion high"
What is this only happens when I go mafless ???
help???
Was at the exhaust shop. May have gotten too greedy, have no cats now. So wanted to do some ve tuning notice some cells +7 range. but cutouts are nice easy to get to.
But as soon as I get over 2300rpm, REDUCE ENGINE POWER, and get a code :
"airflow to tps signal corraltion high"
What is this only happens when I go mafless ???
help???
#2
Originally Posted by 8100hammer
Well I think, may have done it now
Was at the exhaust shop. May have gotten too greedy, have no cats now. So wanted to do some ve tuning notice some cells +7 range. but cutouts are nice easy to get to.
But as soon as I get over 2300rpm, REDUCE ENGINE POWER, and get a code :
"airflow to tps signal corraltion high"
What is this only happens when I go mafless ???
help???
Was at the exhaust shop. May have gotten too greedy, have no cats now. So wanted to do some ve tuning notice some cells +7 range. but cutouts are nice easy to get to.
But as soon as I get over 2300rpm, REDUCE ENGINE POWER, and get a code :
"airflow to tps signal corraltion high"
What is this only happens when I go mafless ???
help???
You definately need to add some fuel in those cells. All of mine are at zero or negative.
I think the NA guys say to try to get them to +3 to -3 or something along those lines.
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