B18C7 splutter/misfire when engine warm - SOLVED!!

**dc2r-0636** · 02-06-2011 02:21 PM

Hey guys

I got a problem with my car. when it warms up to operating tempreture it just splutters/misfires (misfires without a bang lol) only between 2-3k rpm.. above 3 its fine.

this ONLY happens when its in operating tempreture. Mobil 1 petrol 98octance is ONLY used, 101,000 on the clock and fuel filter just changed.

Spark plugs are NGK irriduim around 10,000 kms old and the leads are also 10,000kms old. how ever the leads are some shit 'top gun' crap that autobarn sell..

ive read on holden and ford forums theyre shite... could it be the leads?

problem got bad in the last 2 weeks. have had it before but comes and goes. also it has only happened with this set of leads.

give me some ideas guys thanks

UPDATE:

car doesnt want to start. took two goes to get it to start this morning.
cranks for atleast 6 secs before it starts up. but idles fine?

leads came in the mail today and bought new NGK plugs..

**Glocker** · 02-06-2011 02:44 PM

Swap old leads back in and see?

**dc2r-0636** · 02-06-2011 02:51 PM

i threw them out :@ so i just bought a new set of oem leads from jdm concept.

**zropts** · 02-06-2011 03:12 PM

Yeah top gun are crap! Try the OEM ones.

**dc2r-0636** · 02-06-2011 03:21 PM

i hope it is the leads.. would this be happening if it was the ICM? but it would be happening all the time hot or cold and not just between 2-3k rpm...

**MM89** · 02-06-2011 05:29 PM

got exact same problem. you got aftermarket ecu at all?

**lsvtec** · 02-06-2011 05:40 PM

i had the same problem and it turned out to be my dizzy

**Nepolian** · 02-06-2011 05:57 PM

Not unusual for ICM's and coils to play up when hot!

**IEVAQ8** · 02-06-2011 07:37 PM

try leads, and if still there, ur dizzy is on its way out, it happened to a mates b16 del sol.....

**dc2r-0636** · 02-06-2011 08:16 PM

oh and i forgot to mention its got a stock ECU.. and not throwing me an engine light.

i hope to god its not the dizzy..

thanks for everyones help so far.

**dc2r-0636** · 03-06-2011 08:29 PM

UPDATE: (first post updated aswell)

car doesnt want to start. took two goes to get it to start this morning.
cranks for atleast 6 secs before it starts up. but idles fine?

leads came in the mail today and bought new NGK plugs..

question. why are my spark plugs dying in only 10,000kms ??