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SVT Performance (2002-2004) The place to chat about any 2.0L SVT DOHC Zetec engine performance, tuning and exhaust related upgrades.
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#1 | ||||
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Focus Enthusiast
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car is back in the shop, can you guess why?
well, i went to install my nopi cai. i got it on, got the battery back in and started it up. i let it sit for a couple minutes and checked for leaks and all was good. got in, backed it off the ramps and took off. what the [:)][:)][:)][:)][:)][:)][:)][:)][:)]!?! my low end torque and acceleration was [:)][:)][:)][:)][:)][:)]**! "well, maybe its just gotta relearn the maps, etc." drove for 20 miles and nothing changed. stopped and popped the hood just to look around and make sure everything still looked good. when i started it back up the CEL came on.... came home pissed off and tore that friggin thing off and put my FS cool flo back on hoping to sweet jesus that it would go back to normal. took off a half hour later, and the exact same crap happened.
heres the symptoms-- no throttle response or acceleration. backfiring when i let off the throttle at low rpms(below 4k). below 2k its damn near impossible to do anything but coast. its horrible. i think its either the coil pack, or the dsi. anybody got any guesses, i 'll let you know what the milliondollar answer is tonight, ON "WHATS WRONG WITH MY CAR NOW!!"
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1991 Super Coupe - 95 Cobra engine w/M5R2 5speed, and lots of goodies. 2005 Focus ST - Marcy MS CAI, Xcal2(Toms tune), F2 header, 2.5" Truebendz, $0 Thunder TB, Saleen/Eibach kit with Racecraft springs |
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Focus Fanatic
Fan#: 1
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#2 | ||||
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Focus Enthusiast
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busted you maf by accident? bad O2 sensor maybe?
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framedfiction.com - My photography Portfolio svt.framedfiction.com - #22 of 3985 calgaryfocus.com - Calgary Focus Owners Club |
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#3 | ||||
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Focus Addict
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DSI would NOT do that. You might for some reason have a bad o2 sensor. Code will be SLOW response on Bank 1 or something like that. That woudl be my guess. It is a known prob on the SVT and those are some of ths symptoms. Also Check for Vacuum leaks on something u might have loosened when u installed the intake. LEt us know what they say.
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SVT Squad #76 2002 Infra-Red SVT Performance: HKS Hi-Power Exhaust, FC ORP, Steeda STS, HIA Intake, Prothane Tranny Mount Inserts, Hypnotic tune, QTP Cutout, NX Wet Kit(soon to be Direct Port), SVT Head .030 Milled, Ferrea Stainless Valves, Cometics HeadGasket, Port Matched, Intake/Exhaust Ports, ARP Head Studs, MUCH MUCH MORE, Done PM if interested. |
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#4 | ||||
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Focus Enthusiast
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You bump the TPS sensor off by accident?
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2008 Blue VDub R32 #3858 of 5000 Traded in: 2002 Infra-Red SVT #2992 of 4788 Born on June 20th 2002 |
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#5 | ||||
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Focus Addict
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Sounds like a TPS or MAF to me. I got that same symptoms when I didn't plug in the TPS when I installed my TB.
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03' SVT Focus w/YRF0 AEM CAI, FC 65mm TB, FS UDP, SCT by FS, Kent Cam Gear, MBRP, SD and Firewire, FC STS, All VF Mounts, CFM Silicone Couplers, Gear Balance Delete, NE ORP, EBC Green Stuff, FS Front - Rear Stress Bars, KW Springs |
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#6 | ||||
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FF's Night Security
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sound like MAF thats what mine did I forgot to plug it back in after reconnecting my battery.
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I started out with nothing and I still have most of it left Hatch Nation #15 (Ole' Yeller') & #150 (The SVT) Moderator for Technical Chat Zetec Performance Chat Southern Fanatics Chat |
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#7 | ||||
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Focus Addict
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i recently had a bad TPS (shorted internally, was reading WOT when it would short)
while driving i had the same symptoms you have. Sop my vote goes for the TPS. They're easy to check if you have a multimeter |
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#8 | ||||
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Focus Addict
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...ditto tps.... or you sucked a bird in your CAI...The dsi is easy enough to check, look to see if the cable came off.
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...Success or Failure is not an Event, It is a Process... 04SVT custom pressurized intake,@20lbs..340HP/338TQ, by Tom... ..............ridden Hard and put away Wet... |
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#9 | ||||
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Focus Addict
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Yea, Check the DSI Cable, but come to think of it my money is NOW on the MAF and the TPS which you can easily knock off when replacing an intake.
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SVT Squad #76 2002 Infra-Red SVT Performance: HKS Hi-Power Exhaust, FC ORP, Steeda STS, HIA Intake, Prothane Tranny Mount Inserts, Hypnotic tune, QTP Cutout, NX Wet Kit(soon to be Direct Port), SVT Head .030 Milled, Ferrea Stainless Valves, Cometics HeadGasket, Port Matched, Intake/Exhaust Ports, ARP Head Studs, MUCH MUCH MORE, Done PM if interested. |
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#10 | ||||
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Focus Enthusiast
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sorry to hear that man, i hope you get it fixed soon, hopefully its somthing simple like they were all saying. let me know how you like that nopi CAI, Hows the quality on it? im sure the filter probley sucks though?
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