Jump to content
The mkiv Supra Owners Club

Misfiring still after new clips, packs and plugs.


peter richards

Recommended Posts

ok here goes , with the help of a few members via PMS , and reading ians thread i decided to try and sort out the missfire .

got a new set of clips , second hand set of coil packs , and new plugs , fitted all of them and still no joy , today it started first time and for about 30 seconds i thought it was fixed but then started to run rough again .

so thats about all i can do , unless there is something else which is reletivelly easy to do with my limited ability and tool kit

 

thanks for all the help up to now its appreciated

 

peter

Edited by peter richards (see edit history)
Link to comment
Share on other sites

it isint somthing like old petrol is it,

also do you have a fcd there are known to get missfires if they have a bad connection,

also could be a stuck injector if its on one cylinder if so tapping them with a objected can free them be carefull though,

also is it just at idle or the hole rev range.

check vac pipes

could even be fuel filter but doubtfull but all things i would check

Link to comment
Share on other sites

it isint somthing like old petrol is it,

also do you have a fcd there are known to get missfires if they have a bad connection,

also could be a stuck injector if its on one cylinder if so tapping them with a objected can free them be carefull though,

also is it just at idle or the hole rev range.

check vac pipes

could even be fuel filter but doubtfull but all things i would check

petrol ok vac pipes checked them today , not sure about the fcd, will i have one engine is stock , and its through the range
Link to comment
Share on other sites

Definetly worth borrowing a new ignitor pack Peter, very easy to unplug and swap them over. Its the black box on the right suspension turret about the size of a cigarette packet, has 2 plugs going to it.

 

Also, check the fault codes if you are getting the ecu light on at all. There is a guide on here how to do it or call me and i can run you through it :)

 

I also agree on possible ecu if no luck with the above.

Link to comment
Share on other sites

ok guys thanks for the advice , yes chris agree im only trying to do whatever i can myself .

had a mate come over earlier he pulled the coil pack clips off one by one and no 5 he thinks is where the problem may be , as the engine tone didnt alter , so tomorrow ill swap it with no 1 and see if 1 doesnt work that way 5 is where the fault could be.

problem ive got is regarding the ecu and igniter dont think i can get these to try , anyway lets see if doing this tomorrow helps eliminate one thing

Link to comment
Share on other sites

ok thanks , just took off the pipes behind the air box incase it was split but nope its ok, also pulled the coil pack clips off while it was running , and each made a difference so i think that means they are ok, think its out of my hands now guys

intresting

ok guys thanks for the advice , yes chris agree im only trying to do whatever i can myself .

had a mate come over earlier he pulled the coil pack clips off one by one and no 5 he thinks is where the problem may be , as the engine tone didnt alter , so tomorrow ill swap it with no 1 and see if 1 doesnt work that way 5 is where the fault could be.

problem ive got is regarding the ecu and igniter dont think i can get these to try , anyway lets see if doing this tomorrow helps eliminate one thing

 

you didnt say that before?

Link to comment
Share on other sites

Are you sure it's not an injector fault and you are looking for a coil pack issue? If you can extend the injector leads you can swap them around between adjacent cylinders and see what happens. It won't run perfectly, as the injector timing will be a tad out, but it will run an adjacent cylinder. I n fact you can put any injector lead on any injector and it will still run quite well. Pretty much just as any none sequential injection would run.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.