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Ok.. So where to start. first things first I have a CEL on and it has to do with my o2 sensor(downstream i believe). it has been on for a while and i have replaced it twice now. I am thinking my Cat is on the way out or already gone as i am starting to noticing driveability issues when the car warms. It jerks and hesitates at lower RPM's and miss's at idle. More recently i have noticed i cannot go more then half throttle or so in any gear as it goes into a full on misfit state of hesitation. Is this an issue with my Cat? i replaced the plugs last winter with e3 plugs so they are not the issue. Does anyone know if what i am experiencing is directly related to the cat or could it be a possible vacuum leak or a common problem? any help would be nice before i start throwing money at 02 sensors and a Bolt on Cat section.
Also it is def not my Clutch. When the car is cold it is fine.
Thanks,
Brandon
02' SONIC BLUE, SVTF #2686 OF 4788
K&N FIPK
SCT XCAL-2 POWERED BY STEEDA
SCREAMIN' DEMON COIL PACK & LIVEWIRES
STEEDA STRUT TOWER BRACE (SONIC BLUE)
STEEDA STS
STEEDA REAR POLY MOTOR MOUNT
DEI HEADER WRAP
MBRP 2.5" EXHAUST
EBC GREENSTUFF PADS
EBC SLOTTED AND DIMPLED ROTORS
RUSSELL STEEL BRAIDED LINES
EURO SVT RIMS 17" General Exclaim UHP
ALPINE H/U
Winter package includes Euro SVT RIMS with Nokian WR'S
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Thanks guys. I have a warm garage to do some much needed tlc on the SVT this weekend... So i will check the connection for the coil. Ive been running Screamin Demon coil and live wires for about 60k now so maybe it is starting to retire. I will keep u posted. Would a extremely dirty airfilter or MAF cause this?
02' SONIC BLUE, SVTF #2686 OF 4788
K&N FIPK
SCT XCAL-2 POWERED BY STEEDA
SCREAMIN' DEMON COIL PACK & LIVEWIRES
STEEDA STRUT TOWER BRACE (SONIC BLUE)
STEEDA STS
STEEDA REAR POLY MOTOR MOUNT
DEI HEADER WRAP
MBRP 2.5" EXHAUST
EBC GREENSTUFF PADS
EBC SLOTTED AND DIMPLED ROTORS
RUSSELL STEEL BRAIDED LINES
EURO SVT RIMS 17" General Exclaim UHP
ALPINE H/U
Winter package includes Euro SVT RIMS with Nokian WR'S
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it could, I know when my Ebay air filter on my turbo would get wet, I would get similar issues.
I'd check the coilpack/wires 1st though since its right there....
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the cat maybe plugged,,,we had to chang ours to pass the e-test
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def check coil pack, wires and sparks first. mine had the same issue, I swapped all three components plus replaced my vacuum hose at the back of the intake and it cleared right up!
05 focus se SLAMMED! 5 speed tranny swap with exedy stage 3 hypersingle clutch, raceland coils, MBRP exhaust, FSWERKS stage 2 turbo kit. Massive adjusting camber, toe arms. Steeda's HUGE rear sway bar with upgraded links. Roll bar in the back no backseats. no radio and tons of gauges!
...because RACECAR! haha
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Yup, also the leads going into the coil pack (if roughly the same as the Zetec setup). Doubt it's the cat as a miss is ignition or fuel (normally ignition), so a cat would be too far removed from the issue.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
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