#81974, "Car bucking like hell.... Cam sensor CEL, not the problem though....help"
lately my car has been bucking like hell if i give it too much gas.... at first it was stuttering, and bucking at high rpms... say second gear at 5k-7k rpms... now it does it anytime i floor it...say downshifting from 3rd to 2nd and gunning it...it will just buck like crazy until i ease off the gas, then it runs like a bat out of hell... at one time i had code 1391 i think...it was the cam sensor...ive tried two different ones and it didnt change anything... i looked at the wiring harness and no wires were melted.... anyone ever had this problem...i did a search and it seemed everyone else had a timing problem... i do have crane 14 cams, aem gears(remarked), and im turbo....but i doubt the timing would of actually (jumped) because the car runs good anywhere else and idles decent... what am i missing? doug
14b custom turbo kit, modified starion front mount, 9.6:1 JE pistons/Eagle rods....running 12psi screw flanders
#81989, "RE: Car bucking like hell.... Cam sensor CEL, not the problem though....help" In response to Reply # 2
Make sure the plug is secure in its socket. Mine did that, and it was because the plug was rocking in the socket when the engine would torque on its mounts.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#81990, "RE: Car bucking like hell.... Cam sensor CEL, not the problem though....help" In response to Reply # 3
mine was doing the same exact thing. the wires were having a problem staying connected i guess. i had no CEL at first so i couldnt figure it out, but i fianlly got one for CAS connection...i cut and re-wired a new pigtail in and it fixed her right up
good luck
_ _ _ _ _ _ _ _ _
96 Black ESi 91 Red TSI AWD (RIP) 02 WRX
"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"
Aerospace Certified TIG welder for Precision Castparts in Portland, OR.
#81991, "RE: Car bucking like hell.... Cam sensor CEL, not the problem though....help" In response to Reply # 4
lets see...so far ive gotten a new cam sensor, re wired a new pigtail, checked for any shorts, checked voltages to the cam sensor and crank sensor....everything looks like it should be...but its still doing it..... i do have a logger...but it works when it wants too...(im a 95)...thats how i knew it was 1391...also, i did try changing map sensors....anyone else? doug
14b custom turbo kit, modified starion front mount, 9.6:1 JE pistons/Eagle rods....running 12psi screw flanders
#81993, "RE: Car bucking like hell.... Cam sensor CEL, not the problem though....help" In response to Reply # 5
Originally posted by lickscissors lets see...so far ive gotten a new cam sensor, re wired a new pigtail, checked for any shorts, checked voltages to the cam sensor and crank sensor....everything looks like it should be...but its still doing it..... i do have a logger...but it works when it wants too...(im a 95)...thats how i knew it was 1391...also, i did try changing map sensors....anyone else? doug
like i said, i had the same exact problem my friend.
p1391 is CKP or CMP connection. cmp being cam sensor, and ckp being crank. any short or discrepency in the wiring here will cause you much grief. check both sensors.
_ _ _ _ _ _ _ _ _
96 Black ESi 91 Red TSI AWD (RIP) 02 WRX
"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"
Aerospace Certified TIG welder for Precision Castparts in Portland, OR.
#82040, "RE: Car bucking like hell.... Cam sensor CEL, not the problem though....help" In response to Reply # 6
well alrighty...ill give the crank sensor a shot...i just didnt have one to try out...i did test the leads to it though...ill let you know what i find out doug
14b custom turbo kit, modified starion front mount, 9.6:1 JE pistons/Eagle rods....running 12psi screw flanders
Search
Printer-friendly copy
2 Users in Chat
