Help Dropping Cylinder Rb25det Series1 R33

[Mobies]

Hey RB@25DET owners out there please i need your help my s1 r33 is a shit box iv spent bucket loads on it trying to fix it its dropping cylinders its driving me insane it mainly happens after iv let the motor cool down and when its not dropping it runs like a rusty bucket iv had the injectors replaced and bout to change the coil packs has enyone had this problem help plzzz

[blind_elk]

S1 runs an ignitor module? When they get a bit old, they tend to start breaking down when they get too hot.

[Mobies]

Yeah right iv heard that they tend to do that and id beleive it to cus well im having troubles locating witch cylinder is missing its seems to be random cylinders like iv replaced the 5th coil witch i thought was missing but heck no its so random it sucks

[Luciano]

You can check your coilpacks very easily. Remove the plastic cover over them. Then go for a 'spirited' drive at night when it's dark. Try to recreate the situation where the engine does its bad thing. Then pull over and pop the hood and stick your head in over the packs. I had bad packs, and when I did this, I could clearly see the spark arcing on 3 or 4 out of 6. Bought new packs, and 100% fixed.

Just easy to check this first since it's such a common thing in 'lines.

you should try what sl33py suggested in another thread in this forum.

pretty easy test theory for your coils...

at the end of the day, its all mechnical/machinery.... solutions exist!

calling it a rusty bucket / shit box wont pin point your problem...

does your turbo still boost up under acceleration?

[Mobies]

you should try what sl33py suggested in another thread in this forum.

pretty easy test theory for your coils...

at the end of the day, its all mechnical/machinery.... solutions exist!

calling it a rusty bucket / shit box wont pin point your problem...

does your turbo still boost up under acceleration?

ok then i might try that, ahh yeah thats the thing !!!! when i put my foot down its still got power i really cant figr it out. Firstly when everything went wrong it was a full miss fire like it had droped a full cylinder so i got the injectors cleand and 5 and 6 replaced after that for about a month it was perfect it was idling and runing perfect all of a sudden it started missing again and noticed the 6th spark plug was shot iv replaced all spark plugs after that the missing stoped but it wouldnt idle very well and weirdly enough after when i let the car cool down after work just say when iv gone to sart it again it starts missing but only for about 10 seconds, so iv been trying ta locate witch cylinders missing bye disconecting the packs while its missing and so far iv replaced one coil pack and still having troubles (so yeah iv had a basterd of a time)

[Race_Bred]

could be a blown head gasket,

it could be running like crap due to water leaking into your cylinders and causing the missfire on cold start,

try pulling the spark plugs out one morning before u start it and crank it with no plugs and see if water flies out of the plug holes

[Mobies]

BAHHHH bought new coils 2day and the dam things stills missing iv checked evrything the head , injectors, coils,spark plugs ,does enyone know how much a new coil module is enyone ???????