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#1 N/A_EJ22

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Posted 16 June 2009 - 07:26 PM

Hey everyone, So as the title suggests I've got the small problem of a miss fire. Its to be missing at 2000-2250 rpm noticably and then really roughly at 4000rpm. So far I've changed my leads and spark plugs to little effect. I doubt its a dirty injector either as ive put injector cleaner through and the last few tanks have been 95. So. How do i go about checking if my coil and distributor are mcfugged? How much for new items? Rough idea. I would look in my Haynes manual but ive conviently miss placed it. Help appreciated muchly. Ash.

Previous: 97 Gen 2 Liberty wagon, 89 NA MX5, 88 Toyota Cresta. Current: 04 turbo MX5, 02 Foz GT.


#2 Joe

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Posted 16 June 2009 - 08:07 PM

maybe check afm while your there....

#3 RX25SE

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Posted 16 June 2009 - 08:37 PM

Is the miss at idle too? Does it miss only when you accelerate? Cheers J

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#4 Delete This Account

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Posted 17 June 2009 - 08:21 AM

I suggest coil, happened to my old car, replaced it then it was all good, i think its about $250 from subaru but im sure you can source them cheaper other places

#5 Soop

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Posted 17 June 2009 - 09:38 AM

Have fun checking the distributor. Its a prick to get to...
TSM

#6 Delete This Account

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Posted 17 June 2009 - 09:40 AM

But the coil is handy to get to haha

#7 N/A_EJ22

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Posted 17 June 2009 - 10:02 AM

maybe check afm while your there....


How do i check if thats gone? If it means anything i cleaned it about a month ago? Sorry for the n00bness :P.

Is the miss at idle too? Does it miss only when you accelerate?
Cheers
J


Nah, only under acceleration.

Previous: 97 Gen 2 Liberty wagon, 89 NA MX5, 88 Toyota Cresta. Current: 04 turbo MX5, 02 Foz GT.


#8 RX25SE

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Posted 17 June 2009 - 12:25 PM

Nah, only under acceleration.


Like Walts said, coil. A miss under load is usually leads but youv'e done them.

If you come across any distributors for the EJ22, hang on to them as they are uber rare! :rolleyes:

Cheers
J

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#9 N/A_EJ22

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Posted 17 June 2009 - 05:31 PM

Like Walts said, coil. A miss under load is usually leads but youv'e done them.

If you come across any distributors for the EJ22, hang on to them as they are uber rare! :rolleyes:

Cheers
J


Awesome. Thanks for that mate.

Previous: 97 Gen 2 Liberty wagon, 89 NA MX5, 88 Toyota Cresta. Current: 04 turbo MX5, 02 Foz GT.


#10 Evil_VZ-T

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Posted 17 June 2009 - 07:50 PM

Lol, You do not have a distributor as you have electronic ignition. Are your plugs gaped Correctly? 1.1mm Leads are not earthing out? Faulty Igniter? Ecu earths not having good contact? burnt valves head gaskets There are so many things that could be causing a misfire. Start with checking the basic's. and replacing items that you or a friend may have that are in working condition
MY02 Liberty B4

#11 RX25SE

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Posted 17 June 2009 - 07:54 PM

Awesome. Thanks for that mate.

Anytime.

If you have a digital multimeter you could check each coils primary and secondary resistances (ohms) and you may pick up the fault.
The coils should have a 3 pin plug connecting them to the wiring loom. Unplug it and use the multimeter set to ohms to check the primary resistance between the center pin (common) and the two outer pins (one to each coil). You should have 0.4 to 1.0 ohms.
To test the secondary, just pull out the plug leads and stick the probes in each end of the coil. You should have between 18-24k ohms (18000 - 24000 ohms).
Might be worth a try.
Cheers
J
PS You do know what a distributor is? :)

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#12 N/A_EJ22

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Posted 17 June 2009 - 10:05 PM

Anytime.

If you have a digital multimeter you could check each coils primary and secondary resistances (ohms) and you may pick up the fault.
The coils should have a 3 pin plug connecting them to the wiring loom. Unplug it and use the multimeter set to ohms to check the primary resistance between the center pin (common) and the two outer pins (one to each coil). You should have 0.4 to 1.0 ohms.
To test the secondary, just pull out the plug leads and stick the probes in each end of the coil. You should have between 18-24k ohms (18000 - 24000 ohms).
Might be worth a try.
Cheers
J
PS You do know what a distributor is? :)


Don't have one at home so ill give it a try at school. Thanks again mate.

Yeah i know what a distributor. Fugged if i know where it is, if it has one. N00b, i know :P.

Previous: 97 Gen 2 Liberty wagon, 89 NA MX5, 88 Toyota Cresta. Current: 04 turbo MX5, 02 Foz GT.





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