Bad misfiring issues
#1
Bad misfiring issues
Been to croft today and the car is suffering from a very bad misfire.
The car was set-up 200 miles ago which included a new chip, new cps, new rotor, new plugs, new fuel reg.
The problem is from around 1500rpm and ranges intermittently through to 3300rpm. As you can imagine it's very difficult to drive.
I've replaced the plugs with a new set of 071's and exactly the same.
The car when first started runs very lumpy when driven slow
Any ideas???
The car was set-up 200 miles ago which included a new chip, new cps, new rotor, new plugs, new fuel reg.
The problem is from around 1500rpm and ranges intermittently through to 3300rpm. As you can imagine it's very difficult to drive.
I've replaced the plugs with a new set of 071's and exactly the same.
The car when first started runs very lumpy when driven slow
Any ideas???
#5
PassionFord Post Whore!!
The 071'Cs have been dodgy recently, there have been loads having issues caused by the "seemingly fine" plugs.
Check the cap too as said above.
Ring your tuner to see if they can offer any advice too.
Check the cap too as said above.
Ring your tuner to see if they can offer any advice too.
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#8
Yes mate,
I took the car for the set-up and after the drive back the car was put in the garage, it was then removed next to go to the bodyshop for some more work and an MOT
Thats when it started running funny on the way there, so i dropped off and the body work was done, it went in for it's MOT and failed on tick over as it was ticking over @ 1500+ but was put through as they know the car and it would be sorted.
I started the car to come home and it sounded to me that it was firing on 3 cyl and you could smell fuel under the bonnet and out the back very bad (no leaks under bonnet) then after a minute it cleared and ran on all cyl but was misfiring, i checked the plugs that were in it and they looked fine with correct gaps which were tested at the tuners, so i bought another set and exactly the same no different.
I can smell fuel but have no idea what it is, it's a bit of a pain as i have topped my budget on this car until i can build my savings up so i don't want to start chancing parts that aren't broken, i thought it would run spot on after i had it set-up but it's running worse.
I took the car for the set-up and after the drive back the car was put in the garage, it was then removed next to go to the bodyshop for some more work and an MOT
Thats when it started running funny on the way there, so i dropped off and the body work was done, it went in for it's MOT and failed on tick over as it was ticking over @ 1500+ but was put through as they know the car and it would be sorted.
I started the car to come home and it sounded to me that it was firing on 3 cyl and you could smell fuel under the bonnet and out the back very bad (no leaks under bonnet) then after a minute it cleared and ran on all cyl but was misfiring, i checked the plugs that were in it and they looked fine with correct gaps which were tested at the tuners, so i bought another set and exactly the same no different.
I can smell fuel but have no idea what it is, it's a bit of a pain as i have topped my budget on this car until i can build my savings up so i don't want to start chancing parts that aren't broken, i thought it would run spot on after i had it set-up but it's running worse.
#10
Get on That!
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Yes mate,
I took the car for the set-up and after the drive back the car was put in the garage, it was then removed next to go to the bodyshop for some more work and an MOT
Thats when it started running funny on the way there, so i dropped off and the body work was done, it went in for it's MOT and failed on tick over as it was ticking over @ 1500+ but was put through as they know the car and it would be sorted.
I started the car to come home and it sounded to me that it was firing on 3 cyl and you could smell fuel under the bonnet and out the back very bad (no leaks under bonnet) then after a minute it cleared and ran on all cyl but was misfiring, i checked the plugs that were in it and they looked fine with correct gaps which were tested at the tuners, so i bought another set and exactly the same no different.
I can smell fuel but have no idea what it is, it's a bit of a pain as i have topped my budget on this car until i can build my savings up so i don't want to start chancing parts that aren't broken, i thought it would run spot on after i had it set-up but it's running worse.
I took the car for the set-up and after the drive back the car was put in the garage, it was then removed next to go to the bodyshop for some more work and an MOT
Thats when it started running funny on the way there, so i dropped off and the body work was done, it went in for it's MOT and failed on tick over as it was ticking over @ 1500+ but was put through as they know the car and it would be sorted.
I started the car to come home and it sounded to me that it was firing on 3 cyl and you could smell fuel under the bonnet and out the back very bad (no leaks under bonnet) then after a minute it cleared and ran on all cyl but was misfiring, i checked the plugs that were in it and they looked fine with correct gaps which were tested at the tuners, so i bought another set and exactly the same no different.
I can smell fuel but have no idea what it is, it's a bit of a pain as i have topped my budget on this car until i can build my savings up so i don't want to start chancing parts that aren't broken, i thought it would run spot on after i had it set-up but it's running worse.
But i'd try removing the dizzy cap make sure no moisture has got in there make sure your loom is ok try removing injectors wiring and see if problem still there, then try the plug on the same cylinder, if you got a spare Cap try that aswell, have you washed the engine bay down recently
Last edited by silky16v; 30-06-2008 at 07:47 AM.
#13
Get on That!
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ok pal got a full set of spares at mine and equipment to check loom etc
Phase sensor pal check there is no water or damp inside dizzy
Last edited by silky16v; 30-06-2008 at 01:40 PM.
#14
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i think i am having the same problem as you mines in the 1500 rpm up2 about 3000 rpm acts funny but when it gets past it it flysi checked all them things aswell but when i bought the my 3 door it was like that i have been told to change my ecu so away to do that after full rebuild(just to get this prob sorted gutted some one says a phase sensor it cant be that or the car would not start when did you last change your leads it my possibley be leads?
Last edited by CRAIG HAYTER; 30-06-2008 at 01:57 PM.
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