Please Help!!!! Tuning Question Inside....
08-24-2005, 11:54 AM
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Please Help!!!! Tuning Question Inside.... Ok, continuing problem here. Long story made short.....
Got the TSP magic stick cam package and all the extra goodies, along with a mail order tune from TSP. Originally after cam install was done, we were throwing some SES lights, and around 3000xRPM's, the car would seem to "buck" a little, (missfire almost). Sent the computer back to TSP, they did some changes, sent the computer back, and bingo the SES light was off, throwing no codes. However, the "bucking" around 3000xRPM's still continued. After numerous hours on the phone with TSP, and exhausting every possibility from a (bad ground wire, spark plug and wires check, o2 sensors, etc....), we finally unplugged the MAF(which was descreened before the mail order tune), and the car runs perfect, with no problems. BUT, we are not going to run the car with no MAF obviously, and we then determined that the car must need a DYNO tune....
My questions are: does the Dyno tune to you guys sound like what this car needs???? I mean we really have gone over every single issue that could cause this "bucking" problem, and the car should really get a dyno tune anyway with all the mods i have done to it. But i dont know, just have a hard time believeing that this will FINALLY solve the whole issue. Also, i hear that it could in fact be the MAF itself. Being the fact that the car runs fine without the MAF, but once the MAF is plugged back in it has the buckign problem. What do you guys think???? I appreicate any feedback, this whole situation has just become the biggest headahe in the world. I havent driven the car in like a month now, and with the weather being so nice, just driving me crazy!!!!! Feel like this summer has just been a BIG waste!!!!
Got the TSP magic stick cam package and all the extra goodies, along with a mail order tune from TSP. Originally after cam install was done, we were throwing some SES lights, and around 3000xRPM's, the car would seem to "buck" a little, (missfire almost). Sent the computer back to TSP, they did some changes, sent the computer back, and bingo the SES light was off, throwing no codes. However, the "bucking" around 3000xRPM's still continued. After numerous hours on the phone with TSP, and exhausting every possibility from a (bad ground wire, spark plug and wires check, o2 sensors, etc....), we finally unplugged the MAF(which was descreened before the mail order tune), and the car runs perfect, with no problems. BUT, we are not going to run the car with no MAF obviously, and we then determined that the car must need a DYNO tune....
My questions are: does the Dyno tune to you guys sound like what this car needs???? I mean we really have gone over every single issue that could cause this "bucking" problem, and the car should really get a dyno tune anyway with all the mods i have done to it. But i dont know, just have a hard time believeing that this will FINALLY solve the whole issue. Also, i hear that it could in fact be the MAF itself. Being the fact that the car runs fine without the MAF, but once the MAF is plugged back in it has the buckign problem. What do you guys think???? I appreicate any feedback, this whole situation has just become the biggest headahe in the world. I havent driven the car in like a month now, and with the weather being so nice, just driving me crazy!!!!! Feel like this summer has just been a BIG waste!!!!
Last edited by Sunset35th02Z; 08-24-2005 at 01:43 PM.
08-24-2005, 01:47 PM
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Hmm... Why would you obviously not run the car with out the MAF?
A dyno tune, assuming you meant a basic dyno tune, wouldn't hurt to maximize the WOT power for your application. However, most dyno tunes and tuners do very little to maximize the "streetability" of your car and tend to use band-aid approches to maximize your WOT power.
Have you done any searching to see what others have done to eliminate bucking?
A dyno tune, assuming you meant a basic dyno tune, wouldn't hurt to maximize the WOT power for your application. However, most dyno tunes and tuners do very little to maximize the "streetability" of your car and tend to use band-aid approches to maximize your WOT power.
Have you done any searching to see what others have done to eliminate bucking?
Originally Posted by horist
lol.... this search thingamajig we have here is pretty nifty...
08-24-2005, 02:00 PM
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Nope If I had it all to do over again, I wouldn't have wasted my money on dyno tunes (wasted a perfectly good $400 bill lol).
check out www.efilive.com
EFILive has IMO the best tuning/scanning software. It's intuitive to use and there is a lot of support on their forum and here for your tuning questions.
also take a look at www.hptuners.com
HPT makes a good tuning software too.
there is a great sticky by Horist at the top of this forum about the best packages. Do a little research and dive in. FWIW - it took me 6 months of searching before I was ready to make the investment. Just do your homework and decide whats best for you.
08-24-2005, 02:04 PM
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so basically because my car runs just fine without the MAF, there really is no need for me to have it in there. I was looking at the links u sent me, and believe me i appricate it. I just want to make sure that not running a MAF will not mess up anything with the car, and the car was mail order tuned. So....would there be anything else i ened to do??? Or just pop the MAF off and enjoy????
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08-24-2005, 02:08 PM
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Originally Posted by ninobrn99
disregard my post in the internal engine section
08-24-2005, 02:14 PM
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Originally Posted by ninobrn99
your other option is recal the maf to your ve tables.
08-24-2005, 02:24 PM
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Originally Posted by ninobrn99
no maf= speed density
there isnt any harm w/o running the maf if your tuned for SD that is.
there isnt any harm w/o running the maf if your tuned for SD that is.
08-24-2005, 02:25 PM
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There are a few catches to running SD. I wouldn't assume everything will be allright until you can download your tune and see what's in there.
anyhow... take a search for SD - tons of information in here.
anyhow... take a search for SD - tons of information in here.
08-24-2005, 02:26 PM
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its the tune, not your mods. speed density uses your ve table (volumentric efficency) to determine how much air and fuel is being mixed at a given rpm...or something like that. Its a static tune as oppsed to the dynamic maf tune.
08-24-2005, 02:32 PM
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thats a very good idea!!! take the maf apart though and clean the elements from the front as well as the back. the TB could also be dirty. I had the problem. too bad i had a vaccum leak when my car was tuned 
otherwise id be able to switch over to SD
otherwise id be able to switch over to SD
08-24-2005, 02:33 PM
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Originally Posted by ninobrn99
its the tune, not your mods. speed density uses your ve table (volumentric efficency) to determine how much air and fuel is being mixed at a given rpm...or something like that. Its a static tune as oppsed to the dynamic maf tune.
LOL, sorry im new to this, does that sound about right??? THANKS so much guys for everything!!!
08-24-2005, 02:38 PM
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more or less.... im sure Jason can hook you up, but your better off having the car there so they can monitor all your parameters to see what changes need to be made or find someone with efi to log it for you and send it to them. I know Jason uses edit, so he has to be using efi to log.