Car isn't running Good After Dyno Tun
02-16-2005, 04:53 PM
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Car isn't running Good After Dyno Tun I have The Car about a month after the tune, The Weather Is about 60. getting on Express way [3 rd gear] Hit the gas and the car is moving good and [4 th gear] the car starts to like lose some power . I call the shop Where the work was done and said to bring it in next thursday... any ideas what the problem is ? Also spark plugs were Changed .
02-17-2005, 09:17 PM
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More than likely, the pinging is causing the engine to pull timing and that's what is making the engine lose power.
"pinging" is usually a result of a lean condition - hard on the engine......take it easy until you get it re-tuned........a proper tune will fix that.
If this is a dyno tune, I would strongly suggest bringing the A/F ratio down to 12.6 - 12.9. Most will say 13 is perfect, but IMO it's starting to boarder on going a little too high. Rememer, a dyno is pretty much a free spinning roller and produces little resistance; the road creates a lot of resistance. Resistance will cause your A/F to lean out more.....thus, what you see on the dyno will be more rich than when you drive on the street.
Good luck !
"pinging" is usually a result of a lean condition - hard on the engine......take it easy until you get it re-tuned........a proper tune will fix that.
If this is a dyno tune, I would strongly suggest bringing the A/F ratio down to 12.6 - 12.9. Most will say 13 is perfect, but IMO it's starting to boarder on going a little too high. Rememer, a dyno is pretty much a free spinning roller and produces little resistance; the road creates a lot of resistance. Resistance will cause your A/F to lean out more.....thus, what you see on the dyno will be more rich than when you drive on the street.
Good luck !
02-18-2005, 08:41 PM
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Originally Posted by 2002 CETA conv.m6
Bad gas or low octane ? On my last fill up i don't remember what the guy put in, i usally watch...
.......always run the super unleaded !
.....and yes, that can cause pinging.
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02-26-2005, 10:26 AM
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It wasn't the Gas
Originally Posted by TheBowtieboy
You don't remember what he put in it ?
.......always run the super unleaded !
.....and yes, that can cause pinging.
.......always run the super unleaded !
.....and yes, that can cause pinging.
03-02-2005, 07:55 AM
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Originally Posted by 2002 CETA conv.m6
What's Wrong With this Forum??? No pulse here... The Place That Did The work messed Up...
