snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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Right my car is misfiring between 2-3k revs, i have had new plugs, new leads, new lambda sensor fitted, new cat fitted, water pump and timing belt etc done, check all the other sensors and my car is still jumping a lttle bit between that rev range... any ideas cause im stumped now 
Need it to run smooth at them revs to get it through emmisions test during mot.. help me please
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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whats the engine?
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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lol x16xe
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jmdsouth
Member
Registered: 11th Feb 03
User status: Offline
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what reg is your car? is it to new to do the paper clip test?
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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my mate has the proper diagnostics equipment and we read that and all seems good sensor wise
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Richie B
Member
Registered: 18th Apr 04
Location: Newcastle
User status: Offline
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egr? map sensor? crankshaft sensor?
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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checked what the plugs are running like?
sounds like you might have a timing issue or something like a crached head.
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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egr has been removed and blanked off so i know its not that, and timing has all been done last week.
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Adam
Member
Registered: 1st May 01
Location: Hurstbourne Tarrant
User status: Offline
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mine was missing a bit, cleaned up the air flow sensor and cave the air filter a good clean and recoat with the dirt retention spray and all worked ok agin
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Scotty C
Member
Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline
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Coil?
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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coil been checked already and everythng firing fine. Not cleaned the panel filter but i doubt it will be that to be fair as its fairly new anyway
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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still got problems and it wont go through mot with the misfire... just happens between 2k-3k when stationary and applying throttle. Could it be injectors? and how do i go about cleaning these (ran redex through loads and still the same), panel filter could do with a bit of a clean i guess. Or could it be the head on the way out and if so how do i check this myself as the car runs fine apart from when idle at 2-3k revs.. need some advice ive spent nearly £600 trying to fix this
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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had exactly the same problem on a customers car recently. check the following:
coilpack
crank sensor
throttle position sensor
EGR valve (even if it is blocked off, very common cause for this problem)
diagnostioc tools wont always find a fault. If you want to bring it down to me one day just ring me to book it in, have every spare sensor available in stock to try and swop over, cheaper than buying new ones!
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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cheers mate, ill probably have to do that.. you fitted my torque tube and i know you know a hell of alot about these engines.. cheers again, ill have a look at what you suggested first and get back to you. I work through the week but have weekends off.
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Is the engine standard?
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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only mods are different manifold and panel filter on the engine, oh and a ecotek valve i fitted to try and reduce emmisions, but that was put on after the misfire began.
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Different inlet manifold?
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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yeah, torque tube = mantzel copy mate.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Weird you say that.
I have a mantzel copy too, and my engine has a "stutter" between 2-3k rpm.
I put it down to still running the standard ecu, as it wasn't like that when i had the standard manifold on!
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snottysnowy1
Member
Registered: 15th Mar 04
Location: Durham, County Durham
User status: Offline
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mine was running fine though even after it had it fitted, i dont think its due to the standard management either, its just one of lives mysteries at the minute, im slowly building a new engine bit by bit with all the sensors and parts ive bought lately.
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