Rough idle on Startup

Engines, Transmissions & Final Drive questions and answers

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Brett_MX5
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Re:

Postby Brett_MX5 » Thu Jul 20, 2006 6:30 pm

EGG80X wrote:The trouble is a brand new coil pack is about 600 bucks and i might consider the spitfire individual coils for about 900


I got my replacement off Mania for $350 if I remember correctly. It was off one of their imports that was being stripped.

I've still got my old coil pack if you want it - one of the 2 coils still works, not sure which one tho.. :oops:
"You tried your best and failed miserably,
The lesson is, never try"
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Sean
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Re:

Postby Sean » Thu Jul 20, 2006 8:07 pm

EGG80X wrote:bit of an update, clean the MAF sensor, throttle body, change leads...... still got a mild idle drop upon hot/warm startup..... I have to rev it past 4k rpm and it goes away...... been reading on the forum and maita.net seems like it the coil pack is on the way out...... spoke to Daniel at mania he said the same thing......

The trouble is a brand new coil pack is about 600 bucks and i might consider the spitfire individual coils for about 900


I'd consider swapping the coils out with a set on a mate's car. $600+ is a lot of $$$ to spend if it isn't them.


I recently had a coil go in my NA - No warning at all, just wouldn't start one morning, then all of he sudden it started and ran on 2 cyls :(
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EGG80X
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Postby EGG80X » Thu Aug 10, 2006 3:30 pm

Anyone know's if NA8 coil packs is the same as a NB8A coil pack ?
Found some NA8 ones....


I recently upgraded the ign leads to 8mm magnecore, so far so good...... cross me fingers but only suffer an idle dip on one cold start......
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Insurgence
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Postby Insurgence » Fri Aug 11, 2006 4:42 am

Hey I have a similar problem:
http://aus-cartalk.com/viewtopic.php?t=17286&highlight=

haha my car has been behaving itself until lately, the last 3 warm start have been rough idle affairs. :evil:

Actually i found a ghetto way of fixing it:
- pull out the spark plug lead from the coil pack SLOWLY and then the rough idle goes away :|
- push spark plug lead back into coil pack properly and be on my way.

it's always the #4 ignition lead for me that will fix it
http://www.miata.net/garage/ignition.html

I found out my leads were replaced ~10,000 kms ago.

Brett_MX5 are those coils still available :?:
NB8A
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Brett_MX5
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Re:

Postby Brett_MX5 » Fri Aug 11, 2006 3:12 pm

Insurgence wrote:Brett_MX5 are those coils still available :?:


I'll check the Garage tonight and see if they are still there :D
"You tried your best and failed miserably,
The lesson is, never try"
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Brett_MX5
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Postby Brett_MX5 » Mon Aug 14, 2006 12:40 pm

I've still got it :D
"You tried your best and failed miserably,
The lesson is, never try"
-Homer Simpson
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EGG80X
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Postby EGG80X » Mon Aug 14, 2006 8:28 pm

anyone know if NA8 coil pack fits NB8A?
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