RB20DET Engine miss

[Roy]

My car has just started to miss badly, sounds a bit like a WRX and seems to be only running on 5 cylinders.

Car seem to run fine when cold, but after about 15min of driving the miss returns.

As soo as i stopped the car i ripped out the coil packs and checked the risistances. When hot/warm cylinder 3 was giving strange readings, whilst the other 5 cylinders all read 1.3ohm.

Now that all 6 coil packs are cold they are all reading the same resistance????

So how and where much for a full set of new coil packs, whats the go with 2nd hand, someone lend me a spare RB20DET coil pack so i can ensure thats the prob before shelling out money!

Thanks

[T0nyGTSt]

I got one for ya.

Also compression test would be nice.

T.

[TRUSTGTR]

My car has just started to miss badly, sounds a bit like a WRX and seems to be only running on 5 cylinders.

Car seem to run fine when cold, but after about 15min of driving the miss returns.

As soo as i stopped the car i ripped out the coil packs and checked the risistances. When hot/warm cylinder 3 was giving strange readings, whilst the other 5 cylinders all read 1.3ohm.

Now that all 6 coil packs are cold they are all reading the same resistance????

So how and where much for a full set of new coil packs, whats the go with 2nd hand, someone lend me a spare RB20DET coil pack so i can ensure thats the prob before shelling out money!

Thanks

time to contact Doughboy

[Roy]

time to contact Doughboy  

"oh where are thou Doughboy"... :Oops: Are RB20/25/26 could packs interchangeable????

Cant complain, this is the first problem the car has given me in 4 years, save the speedo cable and alternator

Also compression test would be nice.

No way, what i dont know cant hurt me... Got to get the car ready to drive down to Melb on the weekend, so if i cant get this sorted may be better of flying down

[B-Man]

Roy, Did I ever tell you the story about how my car sounded like a WRX ??? Ended up needing a new engine.......

I hope it is not the same problem.

BTW - I think they are the same in all RB series see here for Splitfire replacements:

http://xspeed.dreamhost.com/catalog/produc...products_id=446

[T0nyGTSt]

Could we please change the subject.

This is not a happy topic of conversation.

I honestly do not feel happy hearing WRX's (real ones!) let alone Skyline imitations.

T.

[Roy]

B-man, if it was every time i turned the key id be worried, but it comes and goes, and always runs fine when car is cold...only happens sometimes when the car has been running around for 15 minutes.

I might just fly down, its cheaper option anyway. Leave the car for 3 months and it may foix itself.

[B-Man]

Clean the AFM ???

Replace plugs ???

Swap coil packs ??

Install RB25DETT ??

[Flaps]

Install RB25DETT ??

haha I'll take one 2!

[09ONE_32]

I think that it will just be a coil pack, but you have checked the spark plugs haven't you? The injector/s are all working fine, no blockages or partial blockages.

[sweetr33]

well obviously when the engine has been running for that 15mins or so the engine bay temps are quite high, coil packs do have a failure sympton of which they will deteriorate when hot, and work fine when cold. Relatively speaking this mayb the problem. I think if u are suspect of a coil then get a Coil off a mates car put it on and run the car, see if it is now gone. Easy way to rule out the coil pack in doubt

[Roy]

Im thinkin git is most likely a coil pack, but what is to go with replacing them. Being pedantic im tempted to replace them all, but what isa set worth?

And could be the injectors, as they were installed about 2 days before the problem started, though they had been cleaned, flow tested and spray patterns checked...its posssible the guy that did it wiped them down, put new pintle caps on them and charged me???? But the running fine/bad...hot/cold thing has me thinking coil pack.

[Roy]

Solved, dodgy coil pack on cyl no.3... no more EJ20 for me...goes to show you cant keep a good RB20 down.