Do You Have A Misfire?

[_MRR33]

MISFIRE PROBLEM SOLVED

Disclaimer:

This information is provided for your information only, anything you choose to do with this information is completely up to you and in no way will I, Skylines Australia or any affiliates be held accountable for following said actions, causing damage or harm to you or your car.

I know a lot of us have misfire problems with our RB engines, and we try so many things to try and solve the problem. I’ve had a misfire problem that I have been trying to fix and I have fixed it now I thought I would post a bit of information on what I did, learnt and read and hopefully if you have a misfire problem you can fix it too.

Firstly, a misfire is a “pa pa pa pa” type of sound that usually happens on heavy load, but can also happen on light load and also a slight miss when your car is idling.

Here are a few things you can do to try and fix this problem:

1. Clean the Air Flow Meter (AFM).

Use “Carby Cleaner” and spray around the AFM and also spray on the small piece of wire inside.

2. Check the coil packs for hairline fractures.

If you have aftermarket coils (Eg: Spitfire Coils) this shouldn’t be a problem it is more the stock coils as they are common problem with the RB engines. The cheap way to fix them is to remove them from your car and then use silicon around them all to cover up the hairline fractures. Otherwise, you can buy a new set of coils best bet would be buying Spitfire Coils.

3. Clean out the inside of the coil packs where the spring is inside.

I used “Carby Cleaner” for this and worked a treat. Just spray the Carby Cleaner at the spring inside allow it to dry before putting it back in.

4. Replace your spark plugs

Depending what RB engine you have, power it is putting out and the boost that you are running will depend on what spark plugs you should use.

If either of the above doesn’t fix your problem, then you should get your Fuel Flitter checked, also check if you have any knocks, you may want to try and get your injectors cleaned, check your 02 Sensor and also check your igniter module.

I hope this will help a few people in resolving there misfire problems with there RB engines.

All the best, and good luck!

Edited February 11, 2007 by ThugishPimp

[Guilt-Toy]

I would like to add something to this. gap your plugs to .8 and if your keen .6

[ali-turko]

when i had a missfire i gaped mine all the way down to .5 with no changed, my coils were f*ked

[Ronin]

Replacing the igniter module fixed mine.

[_MRR33]

Replacing the igniter module fixed mine.

Totally forgot about that, I've added it in - thanks.

Hopefully this will help people fix there misfire problems. Anything else I have missed, please do let me know I'll add it in.

[Ryanrb25]

.7 gap worked for me.

when taking the spring out the coil, use some emery paper to clean inside the coil, this will bring it up the contact surface like new.

make sure the rubber boot around the coils aren't split