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I think my Crome tuning has gone bad! HELP

Old 12-04-2005, 06:02 PM
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Default I think my Crome tuning has gone bad! HELP

Well after Mr. Davis tuned my ecu with crome about three weeks ago i decided to change turbo and fmic. I changed out the intercooler, and added a different turbo. My old downpipe would no longer fit, so i am running an open downpipe and the moment. It does not have the o2 sensor in it, but it is still plug'd up. Although Mr. Davis tuned my ecu in closed loop for the time being i dont feel that its hurting anything. Anyhow, i go to prime up the turbo so that i dont have any metal to metal shafts clanking and pull the ecu fuse. My turbo is fully primed and nothing else seems to need attention. I go to crank the car and it just turns over and over and over. Doesnt seem like its getting fuel/spark or something. But we check for fuel and boy is it rich. You can smell it as soon as you get close. I pulled the plug wires and check'd for fire, none. Even checked all four for the hell of it. I felt maybe i had fouled the plugs, went and grabbed some bosch standard gsr plugs and gapped back to .030 just like mr. davis and i had. Still nothing. So i changed out the chipped ecu for the stock and it cranked. But was running hella rich. I got it outside the garage and parked it til the next day. I hooked back up my "crome" ecu and thought maybe since i had burnt the fuel out of it it'd run. Well it cranked, and i drove it out in my neighborhood. It was smuthering out under its own power until it would hit full boost, which was only set at like 7 through a mbc. Anyhow i went and turned around and the car died, it wouldnt even crank again, it just spun over and over and over. I rolled it off and got it to run again although pulling back up the hill if you gave it anymore than say 15% throttle it would smuther out. I finally got it to crank again and got it towed home. But today i had someone come look at it to buy it and it cranked up and idle'd. The guy seemed to think i was loosing compression by the way he heard it run. I dont know if this is true but the car hasnt even ran very long since the new turbo was installed and it was perfect before. I went back to pull it inside the garage later tonight and it wouldnt even crank up, tried both ecu's. Well after pulling it inside my garage i pulled the plugs and they were black, i've cleaned them up and am going to try them again, but i beleive they are foul'd. The car will throw a CEL with the stock ecu but i cant get the car to crank up now so that i can read the code. I need Serious HELP. I am outa heart with the car and really considering loosing my *** and $$ just so i dont have to look at it any longer. And MR. Davis if you read this contact me. I've tried to get ahold of you for about a week now and you never answer my calls. Let me know whats up.


-Seth

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Old 12-04-2005, 06:25 PM
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Default Re: I think my Crome tuning has gone bad! HELP

i put the plugs back in and the car cranked with the stock ecu. Wouldnt crank with the Chipped one. It threw a CEL and it read 3. I looked it up and thats MAP sensor. I replaced it with another one i had laying around here, and it still threw the code, but the plugs are way to flooded out with gas now for it to crank again. Do you think its possible the other MAP sensor was bad to, would that cause my problems?
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Old 12-04-2005, 11:41 PM
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Default Re: I think my Crome tuning has gone bad! HELP

First, check the engine grounds, Valve cover, Tranny, and back of the block.
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Old 12-17-2005, 04:46 PM
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Default Re: I think my Crome tuning has gone bad! HELP

if the plugs and gas smell the way you described...you may have washed your rings and not getting good compression.

if the tune was in closed loop and the o2 isn't in the exhaust stream it's probably reading it lean and dumping fuel to try and get it rich.
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Old 12-17-2005, 05:13 PM
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Default Re: I think my Crome tuning has gone bad! HELP

when you turn the key to the on position, does the cel stay on, or does it turn off after a few seconds?? also, who did the ecu chipping?? i would pull the ecu covers off and check the soldering job. make sure all the solder joints are good. i had a similar problem where the ecu just threw a solid cel out of no where after running fine for about 2 months. the guy chipped his own ecu and didn't do a very good job and some of the joints were crap. went over everything again w/ a soldering iron and she was good to go. that, and get ur o2 in your exhaust stream asap
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Old 12-17-2005, 06:56 PM
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Default Re: I think my Crome tuning has gone bad! HELP

Yeah, drilling my phone seven times in two hours normally gets you shitlisted with me. But I called you back, asked you not to do that on your voicemail, to either state what you need or ask me via email/pm, and you turned back around and drilled my phone some more. I'll answer your questions when I'm good and unpissed about the situation.

FYI, he went from an SSAC large turbine T3/T4, that didn't spool until 4000-4500 rpms, to a .42/.48 T3. Can anybody guess what the problem with the tune is?
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Old 12-17-2005, 07:53 PM
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Default Re: I think my Crome tuning has gone bad! HELP

hehe, I see a slight problem
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Old 12-17-2005, 08:08 PM
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Default Re: I think my Crome tuning has gone bad! HELP

lol
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Old 12-25-2005, 10:11 AM
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Default Re: I think my Crome tuning has gone bad! HELP

take the advice given here and make the necessary corrections...

i can see why j.davis didn't return your call...i'd do the same thing. patience is a wonderful thing.
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Old 12-26-2005, 10:12 AM
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Default Re: I think my Crome tuning has gone bad! HELP

Originally Posted by Joseph Davis
Yeah, drilling my phone seven times in two hours normally gets you shitlisted with me. But I called you back, asked you not to do that on your voicemail, to either state what you need or ask me via email/pm, and you turned back around and drilled my phone some more. I'll answer your questions when I'm good and unpissed about the situation.

FYI, he went from an SSAC large turbine T3/T4, that didn't spool until 4000-4500 rpms, to a .42/.48 T3. Can anybody guess what the problem with the tune is?
ha ha self owned
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