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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
hey guys
today i went for a strap with the pod relocated to see if she heats up which appears to fixed the heating issue but when i was playing around i hit the rev limiter about 3-4 times in first and after that the car just lost a cylinder and misses under load. Any ideas?? im only running 5 psi so it not much and the engine fresh just got my 2000km up and started to enjoy the rebuild. i tryed another map sensor and another set of plugs and the ignition leads are not even 2 weeks old. ive got a spare coil pack that im going to try tomorrow after work and if that no help ill do a compression test to see it hasn't done a cylinder. it idles smooth but under load it missing a cylinder vac lines look ok any suggestions
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| EFFalcon |
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coil pack sounds familiar to me.
mines been through a few, even had similar symptoms to urs.
_________________ FALCN6 - EF GLi Turbo, 20" Rims, Air Bag Suspension, Straight LPG, 225rwkw |
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
I should also mension that is had a lifter ticker since starting up to drive to work today in the morning i wondering if a valve spring failed im going to fit the other coil pack right now ill let you know in 10mins what happens
_________________ Ford EF Futura Black
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
i replaced the coil pack and the fault is still there!!!
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| fairmont599 |
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Posts: 1135 Joined: 27th Oct 2005 |
Might be worth while pulling the rocker cover and check the springs out.
The other set of plugs you tried, were they new? reason i ask is a mate with an R31 skyline had a missing issue was driving us mad. took the old plugs out and they all looked ok but when putting them back in we notice that the white (is it porcelaine?) bit at the tip had hairline fractures in it. went to pull it out and it just crumbled in our hands. |
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| Froudey |
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saw the topic and straight away thought coilpacks.. i would check them out to see if all have spark.
_________________ R.I.P Tobias my son. |
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
i checked the spark and all 6 cylinder have spark and im ganna pop off my tappet cover and see if a valve spring broke only think i can think of
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
i poped the tappet cover off and from a quick look in the dark with a light i couldn't see anything broken but ill double check them in the morning.
Anyone got any idea what it could be???
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| Froudey |
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the next step would maybe a spark plug failing or failed... or maybe an injector??
_________________ R.I.P Tobias my son. |
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
well i swapped the spark plugs over with spares i had and no change.
how do i go about testing injectors??? disconnect fuel rail with injectors or disconnect injector and check injectors connector for a pulse? if so that way how do i test them? do i earth to body and probe or it one to each connector in the plug and see for a pulse?
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| stanbu |
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Hi,
I had a similar problem with mine - turned out to be the injector Stan |
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| Froudey |
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Xflow wrote: well i swapped the spark plugs over with spares i had and no change.
how do i go about testing injectors??? disconnect fuel rail with injectors or disconnect injector and check injectors connector for a pulse? if so that way how do i test them? do i earth to body and probe or it one to each connector in the plug and see for a pulse? no idea.. i was going to suggest uplugging a injector start the car etc etc but i don't think that would help.. unless you got spare injectors...
_________________ R.I.P Tobias my son. |
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
stanbu wrote: Hi,
I had a similar problem with mine - turned out to be the injector Stan ok how you test the injector?
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| Froudey |
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Xflow wrote: stanbu wrote: Hi, I had a similar problem with mine - turned out to be the injector Stan ok how you test the injector? i googled testing injectors came up with alot of drug s**t and injector cleanign ads.. and a way using a multimeter using the %dwell reading... but seems like ya need special cords
_________________ R.I.P Tobias my son. |
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| Xflow |
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Age: 36 Posts: 721 Joined: 31st Dec 2005 Ride: EF V8 Futura, 180sx Location: Brisbane, Burpengary |
i did checked over the valve springs and they seemed fine so i refitted the rocket cover and started the car up and disconnect the injectors while engine running 1 by 1 and engine went rough when i disconnected each one.
i did a compression test on the engine and got cylinder 1 200psi cylinder 2 200psi cylinder 3 250psi bit high cylinder 4 200psi cylinder 5 200psi cylinder 6 200psi and i start engine up and used a stephascope and confirmed the noise lifter on cylinder 3 exhaust valve anyone got any idea what could be happening????? anything would help greatly
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