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Weird Issue With Cylinder No. 3.

Daboss

By Daboss,
in Engines & Forced Induction

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Daboss Experienced

Daboss

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Hey forum need to ask your help with an issue I am having. I will try to be as thorough as possible in explaining the problem. Car just finished a rebuild were everything was replaced, drove car on friday everything was running well. Cut it off after reaching destination and about an hour later started her up and noticed a miss on cylinder 5. Drove it still missing on number 5 and while doing so it backfired very loudly every time I took my foot off the gas. Got to my next destination were I cut it off to check on number 5, found out that the o-ring on the injector was torn so figured that was the source of the problem also at the same time the starter went bad tried to start the car and it would begin to roll but then lock up and the entire engine would shake from it after doing that a few times with the same result decided to get another starter in the morning. Got a starter, a new set of injectors and another cas just in case and replaced ball of those items, got the car started only to get a miss on both cylinder 3 and 6. Checked for fuel and spark on both cylinders and both were getting fuel and spark. Replaced the injector loom, coilpack loom and the two suspect coilpacks with working items off another car and got nothing. Put all the original parts back in started the car again and now only number three misses. Did the checks on number 3 again and got spark plus fuel but cylinder still misses. Can any of you guys help to identify the problem. Car had nismo 555 changed them to 650's running a power fc with new super spark coilpacks. The CAS had also died but that was before this incident and had that replaced already and also replaced it again just n case this time with a known working one. So the miss went from 5 to 3 to 3 and 6 now just to 3. All help will be appreciated, thanks.

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Daboss Experienced

Daboss

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WOW nobody has any advice? Another thing is that the #3 cylinder never fires,I drove it home today and when doing my checks noticed it is now the #2 and 3 cylinder that is not firing. The #2 was working fine yesterday and now it is not just like yesterday it was the 6 and 3. Now the 6 fires and the #2 has gone. The #3 never comes and goes like the other 2 have and they just happened to do this between today and yesterday. The #3 was working before the huge backfire but after the starter did the seizing thing and we got it to start again the #3 has never fired since. Can timing being out a tooth cause this type of problem.

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

pull out the spark plugs and check condition,

your better off getting the injectors the car is tuned with cleaned and checked then put them in with new orings.

but definately need to get the plugs out and have a good look at them even post up some pics.

if you got some money go grab some new cheapy plugs and throw them in see if it makes a difference.

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