Problem with dsm.....lol
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DrifterExtreme wrote:
shut up will....god damn fargostreet nazi...lolanyway does anyone have any real answers?
Do a boost leak test..You will probably find the source of your fuel cut. And get the Boost Gauge hooked up, that will also help you to see if your turbo is boosting properly/ also if your wastegate is working.
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ok i had a coupler off before and it fuel cut and i fixed that then the same so i will check again for leakes going to hook up the boost gauge now..
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So now i am feeling it is the wastegate because i feel a big fuel cut at around 25 psi on the autometer guage.... so how bad is this i have hit fuel cut 4 times and now i need wastegate. also i had to derectly connected to the wastegate from the j pipe....
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stock with a 3" exhaust
and i guess a bad wastegate
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wastegate won't get you more fuel. Any idea what kind of AFR numbers you are running? Besides, 25psi on a stock turbo probably is a stupid idea, at some point all turbos run out of efficiency and just become huge heat pumps (this isn't a good thing) I dunno what the magic number is for DSM's, but I'm guessing 25psi is across that line.
For more fuel look to a walbro Fuel Pump and some aftermarket injectors...and an SAFC or some other sort of fuel computer along with a wideband O2 to properly tune this thing.
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tjamz wrote:
wastegate won't get you more fuel. Any idea what kind of AFR numbers you are running? Besides, 25psi on a stock turbo probably is a stupid idea, at some point all turbos run out of efficiency and just become huge heat pumps (this isn't a good thing) I dunno what the magic number is for DSM's, but I'm guessing 25psi is across that line.For more fuel look to a walbro Fuel Pump and some aftermarket injectors...and an SAFC or some other sort of fuel computer along with a wideband O2 to properly tune this thing.
I'm guessing he just wants it to be stock...the wastegate obviously isnt opening at all...or if any just barely
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I just found a wastegate and no i don't want to boost 25 i need it stock for now so i will replae the wastegate and see if it fixes my problem.
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I hope that wasn't focused towards me because i don't by any means wish to boost some stupid amount... just run it stock for awile
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Ok, for those who aren't catching the e-sarcasm I will clear this up a little. Matt was getting horrible fuel cut in the DSM. The oh so reliable DSM boost gauge was telling him that he was getting fuel cut at only 7 psi so, we swapped in an aftermarket boost gauge and first gear spiked to 20 psi then held steady at 18 then in second gear the boost gauge ran all the way to 25 psi which is where he started getting fuel cut. According to the OEM gauge he was at 7 psi when this happened. And now we have the answer of bad wastegate. He is getting a new one to run the factory boost level (whatever the hell it is...I've heard 6 9 and 12) which is what he wants.
The whole thread is filled with sarcasm and it appears that not too many people are catching it.
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Oh, I read it as he is TRYING to run 25 psi. My bad
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