not coil packs!!

JBT · Postby **JBT** » Tue Sep 26, 2006 10:37 pm

Vacuum keeps it closed at idle and spring pressure opens it when the vacuum reduces as the throttle opens.

irwin83r · Postby **irwin83r** » Wed Sep 27, 2006 6:32 pm

going to drive up to mania on saturday and try replacing different parts a bit at a time from a wreck and see which fixes/stops the problem.

it seems to be getting worse too :shock:

might be a case of if i make it there or not :lol:

4sfed5 · Postby **4sfed5** » Wed Sep 27, 2006 7:57 pm

CHECK YOUR EARTH POINTS!!!!!!
Disconnect the earth points to the chassis and engine block and clean them up with some fine emery paper.
Bad earths cause ignition problems and burn out coils so check that first.....
Also there have been cases where the CAS loom gets faulty wiring particularly where its cable tied to the inlet manifold causing the wires to break and cause problems.

irwin83r · Postby **irwin83r** » Wed Sep 27, 2006 8:58 pm

4sfed5 wrote:CHECK YOUR EARTH POINTS!!!!!!
Disconnect the earth points to the chassis and engine block and clean them up with some fine emery paper.
Bad earths cause ignition problems and burn out coils so check that first.....
Also there have been cases where the CAS loom gets faulty wiring particularly where its cable tied to the inlet manifold causing the wires to break and cause problems.

will do

StanTheMan · Postby **StanTheMan** » Wed Sep 27, 2006 10:46 pm

so....any luck? Its been an hr.......

Garry · Postby **Garry** » Thu Sep 28, 2006 10:08 am

Have you checked the wiring on your AFM? From memory you have a cold side intake which would have required some extra wire to be added to the original wire?

JBT · Postby **JBT** » Thu Sep 28, 2006 11:06 am

That question was asked about 6 days ago

.

I'd love to know what happens with a new set of OEM leads fitted though.

Garry · Postby **Garry** » Thu Sep 28, 2006 11:44 am

My apologies JBT. :oops:

But I'm with you. I had \"good quality\" almost new (like 3 weeks old) aftermarket leads that broke down and caused a miss every time the car got hot in traffic and put under load. Once the traffic started flowing again things cooled down and the miss stopped. They were replaced with new Mazda leads and I haven't had a problem since.

The Pupat · Postby **The Pupat** » Thu Sep 28, 2006 5:08 pm

If it's doing it whilst hot then it's most likely leads. Mine did the same when the leads failed. You would drive the car for a while whilst the everything was cool and it was all fine and dandy but after a while when everything heated up it would start missing and run like a Subaru.

Anyway swapped lead and plugs at the same time and when we pulled them out you could see that one plug was fuelly over the rest. Swapped the leads and good as gold.

So I reckon it's the leads. probably the easiest way to check will be to get it hot and get it to the stage where it's missing. Stop the car and pull the leads and check the spark plugs. Look for one plug that is clearly wet or smells like fuel if so this lead will most like be buggered. I would be very surprised if any other fault were to replicate this fault short of a single pole on a coil pack being blown (IE only sparking 1 of the 2 leads which) which you should have removed from the equation already.

irwin83r · Postby **irwin83r** » Fri Sep 29, 2006 7:30 pm

StanTheMan wrote:so....any luck? Its been an hr.......

you do anything but watch this forum stm?? haha

nah no luck going to mania tomorrow hopefully. swap some parts with a wrecking one and find out whats the prob that way.

irwin83r · Postby **irwin83r** » Fri Sep 29, 2006 7:38 pm

Garry wrote:Have you checked the wiring on your AFM? From memory you have a cold side intake which would have required some extra wire to be added to the original wire?

didnt need to extend the wires for the cold side. so.. that should be peaches.

The Pupat wrote:If it's doing it whilst hot then it's most likely leads. Mine did the same when the leads failed. You would drive the car for a while whilst the everything was cool and it was all fine and dandy but after a while when everything heated up it would start missing and run like a Subaru.

Anyway swapped lead and plugs at the same time and when we pulled them out you could see that one plug was fuelly over the rest. Swapped the leads and good as gold.

So I reckon it's the leads. probably the easiest way to check will be to get it hot and get it to the stage where it's missing. Stop the car and pull the leads and check the spark plugs. Look for one plug that is clearly wet or smells like fuel if so this lead will most like be buggered. I would be very surprised if any other fault were to replicate this fault short of a single pole on a coil pack being blown (IE only sparking 1 of the 2 leads which) which you should have removed from the equation already.

fark... hope its not leads.. i keep going to replace them but none of the shops (auto one, repco, super craps) have em in stock when ever im there and like i said they seemed fine with the vault meter

but! havent checked them while hot :shock:

im a fool

either way ill head up to mania tomorrow and see what the problem is. if its leads then i might have money left over something else

irwin83r · Postby **irwin83r** » Sun Oct 01, 2006 12:44 pm

went to mania yesterday and tried afew things, was made easier as we could trouble shoot things on their dyno... which lead to some interesting power readings

checked the AFM, plug leads, ERG wireing but the problem turned out to be the cam angle sensor. it wasnt faulty but wasnt seated properly

so only really need a clean and a fiddle and then it ran fine.

done a power run and it reg 91RWK!!!!????

they have recently change the hard drive though so their not sure if it needs to be recalibrated but they said previously it had match reading of other dyno's in the area on different cars.

but back on topic, just want to say thanks to everyone that gave their 2c as it did help narrowing down to the cause of the problem.

AJ · Postby AJ » Sun Oct 01, 2006 12:50 pm

excellent news irwin :mrgreen: ..........so had you mucked around with the cams, or did it just work its own way out of place??? :?

coupla high readings on that dyno last coupla days, could need recalibrating i think, but hey, keep the sheet mate, handy to flash around for braggin' rights.......... :wink: :lol:

irwin83r · Postby **irwin83r** » Sun Oct 01, 2006 2:50 pm

AJ wrote:excellent news irwin ..........so had you mucked around with the cams, or did it just work its own way out of place???

yeah i had taken the cam cover off and removed that to paint it. i did tape it all up and remove any over spray (or so i thought) but yeah looks like i didnt fit it back on totaly properly.