AA98hoe Posted May 3, 2012 Report Share Posted May 3, 2012 Noticed I had a miss at idle..changed plugs and it went away then came back..now its gone..but under full throttle underload it will stumble like a miss and sounds like a mini backfire through the intake... I'm think fuel injector an I read maybe fuel pressure reg... then I second gues an think its ignition..any help is appreciated..need this fixed I'm afraid its goin to get worse... Quote TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
n8ball2013 Posted May 3, 2012 Report Share Posted May 3, 2012 How olds your fuel pump Quote THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger. Link to comment Share on other sites More sharing options...
HatersGonnaHate Posted May 3, 2012 Report Share Posted May 3, 2012 Do you know if this has the "spider leg" type of fuel injection on it? Quote My name is AdamThis is my Civic Build.7" Samsung Tab 2Kenwood KDC-X896Clarion EQS746Sundown X-15DC 3.5k @2ohmHatersGonnaHate's 02 Civic UBLELD Bypass for Honda Civic/Accord/FitDon's Jeep Grand Cherokee Rebuild N8ball2013 - i think you'd stick your dick in a blender if it told you it was 40 wtih two kids your age. lol srp365 - If posting were picking up bitches, I'd be going home single tonight looks like tony montana sneezed in your car. Link to comment Share on other sites More sharing options...
bobobass Posted May 3, 2012 Report Share Posted May 3, 2012 Have you changed plug wires? Quote 2000 Subaru outback 2.5l Head Unit: Pioneer deh 4300ub front stage: tbd subwoofer: Stock Fi Q 18" amp: Audio que 1200d Link to comment Share on other sites More sharing options...
AA98hoe Posted May 4, 2012 Author Report Share Posted May 4, 2012 Fuel pump is at least 4yrs maybe more I haven't changed it ill ask my friend I bought it from..yes it has the shitty 2 piece manifold with the spiders n poppet valves..I dumped some seafoam in a full tank of gas today..it runs good during normal driving but sputters full throttle for a brief second when hard shifting etc...haven't changed wires...my hoe is considered my work truck and its my daily driver..my boss said throw it in the shop on Monday... :-) Quote TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
n8ball2013 Posted May 4, 2012 Report Share Posted May 4, 2012 Mine did something similar right before the fuel pump died Quote THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger. Link to comment Share on other sites More sharing options...
AA98hoe Posted May 4, 2012 Author Report Share Posted May 4, 2012 Thanks n8...that mite be the issue...I'm thinkn since jumping to 14v its been hard on my electrical..fuel pump , ecu, tranny ..all weren't designed to run mid 16v... Quote TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
dolarbilz Posted May 4, 2012 Report Share Posted May 4, 2012 Go back to 12 volts drop in new fuel pump.i know youmy want your system kicksss..put it on seprate 16 volts! Quote Link to comment Share on other sites More sharing options...
JacobB89 Posted May 4, 2012 Report Share Posted May 4, 2012 Pump or spider injectors had almost same shit with mine went threw a ton of different thigs trying to figure out what it was and the seal on the spider injectors and one of the injectors were causing a misfire due to the extra fuel being dumped mine did it more at idel and smoothed out once you got going. Cost me under 500 for parta and labor. Good luck man Quote Big Wheels Are Like G-Strings...Anyone can put them on but it don't mean they look good..... Link to comment Share on other sites More sharing options...
armykyle1 Posted May 4, 2012 Report Share Posted May 4, 2012 Pump or spider injectors had almost same shit with mine went threw a ton of different thigs trying to figure out what it was and the seal on the spider injectors and one of the injectors were causing a misfire due to the extra fuel being dumped mine did it more at idel and smoothed out once you got going. Cost me under 500 for parta and labor. Good luck man I fucking hate spider injection.... Shit was a joke for real.... They should have just used the MPI setup or shit, stick with TBI Slight leak in the upper intake gasket can cause this, its a known failure on those style motors.. Good luck man Quote TEAM XS POWERTEAM HEAVY HERTZMy build- http://www.stevemeadedesigns.com/board/topic/194454-e46-bmw-build-pos/#entry2914134youtube- http://www.youtube.com/user/armykyle1big build starting Link to comment Share on other sites More sharing options...
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