help me with a missing problem/surging

Post by **Alex** » Wed Jun 04, 2008 2:52 pm

gday gday,

so after a record ej22 swap i have one smallish issue with the motor. It seems to be missing/surging.

i have changed the
-plugs
-leads
-fuel filter

cleaned all the connections (three smallish clips near the intake), injectors and other random plugs such as afm and 02 sensor etc.

my main question for this thread are the three main engine plugs. (the big ones) i sprayed them with degreaser and bang she ran fine. Then i turned the car off, and started it again and the miss was back. Can a shitty connection here cause this problem? I plan to chop these plugs outta my wreck and put them in the wagon (biggish job).

any other ideas? or opinions?

thanks

alex

SuBaRiNo · Post by **SuBaRiNo** » Wed Jun 04, 2008 8:25 pm

What did u use for your exhaust manifold gaskets??? Goo?? Sensor safe Goo??

Sorta seams like O2 sensor to me... unplug the O2 sensor and see what that does.

Does it idle ok and only miss when you put your foot down??

Also you are right if them plugs get moisture or stuff in them it can make it carry on. There is contact electrical cleaner that Dicks Smiths sells thats good to clean them up with.

Also have you got your fuel return and evap lines the right way?? If u do it wrong then a bit of fuel will back feed up the evap line and make your engine flood ever so slightly which will cause it to surge.

Dave

littlewhiteute · Post by **littlewhiteute** » Sun Jun 15, 2008 6:21 am

That's not going to fix his miss, your in the wrong forum DH.

SuBaRiNo · Post by **SuBaRiNo** » Tue Jun 17, 2008 10:20 am

littlewhiteute wrote:That's not going to fix his miss, your in the wrong forum DH.

What are you on about??

Dave

dwayneb · Post by **dwayneb** » Tue Jun 17, 2008 11:38 am

Dave, there was a spammer in this forum with links to some crap, that is what littlewhite is saying.

SuBaRiNo · Post by **SuBaRiNo** » Tue Jun 17, 2008 11:47 am

Ohh got ya... thanks for that... read through my post like 5 times trying to work out what he was on about. I have actually experienced my above coments over the years creating misses and surges so i couldn't understand what was going on.

More on topic... did you end up fixing it Alex?

Thanks again
Dave

Post by **Alex** » Tue Jun 17, 2008 2:41 pm

its sort of fixed itself.

but i think ive narrowed it down to the o2 sensor. The car misses and runs like crap after a water crossing (even a shollow one) and the o2 sensor is the only thing i can think of that would get submersed and cause the motor to run funny. Im changing it soon.

alex

Subafury · Post by **Subafury** » Tue Jun 17, 2008 6:39 pm

matatk just got a universal ebay jobby which seems to work ok. maybe try that

Matatak · Post by **Matatak** » Tue Jun 17, 2008 7:30 pm

Subafury wrote:matatk just got a universal ebay jobby which seems to work ok. maybe try that

Lol it not connected yet.

cant find the other side of the damn connecter for engine harness.

Post by **Alex** » Tue Jun 17, 2008 8:23 pm

i have a wreck here, im gonna chop the headers and o2 sensor out and get them put on.

alex

Matatak · Post by **Matatak** » Tue Jun 17, 2008 8:53 pm

Alex wrote:i have a wreck here, im gonna chop the headers and o2 sensor out and get them put on.

alex

gimme ur old O2 sensor then

only want the plug on it