SR tuning...maybe?

Post by **5upra** » Wed Feb 15, 2006 7:47 pm

Well this is going on for a while but not as bad as lately...but here we go. this situation only happens around 80% throttle to WOT over 3500rpm. The motor will cut in and out of power. And when the cut is going in and out exhaust back fire is present...gets really bad now. Was trying to run a mach 1 mustang and I was never going to catch him...thats how bad it was. I had my safc tuned during the colder days and wondered if that might be a factor. My conclusion(haven't looked into yet)would be some sort of spark malfunction, seeing the backfire is consistent out of exhaust. Anyone else have a similar problem?

Post by **Nismo_Freak** » Fri Feb 17, 2006 5:11 pm

Replace your spark plugs with NGK BKR7E's ... gap to .32" - .28". Keep the gap as open as possible, sometimes people have to go down to .28" to get the misfiring to subside.

Post by **Blown240sx** » Sat Feb 18, 2006 8:11 pm

I had a simular problem. Do you have the Fuel Curve Turned up or down? I found that I was flooding the engine when it was cold cause I had turned the fuel curve up thinking it wasnt getting enough.

I turned mine down 4% and it hasnt done that backfire cut thing since.

Post by **5upra** » Sun Feb 19, 2006 9:40 pm

I am looking at getting those plugs but the reason for the symptom was oil fouling plugs...its hella gay. My valve cover gasket is leaking oil onto plugs 1 2 3 Causing the misfiring and the horrible rich condition(wish I had a wideband...would have known sooner). Anyway taken care of for right now but where do I find a cover gasket? Anyone know!!!

Post by **Nismo_Freak** » Mon Feb 20, 2006 3:15 pm

Nissan from an SR20DE.

Post by **5upra** » Tue Feb 21, 2006 10:36 pm

Alright thank you! Problems solved

Post by **5upra** » Thu Feb 23, 2006 9:30 pm

Where do you get those plugs at? I have been to a couple parts stores and they neither carry them nor do they order them!

Post by **SlowS12** » Thu Feb 23, 2006 11:35 pm

Go to Oreilly or Napa. They should have them

Post by **5upra** » Sat Feb 25, 2006 9:36 pm

Well I am still having the same problem but not as bad. Have the gap set to .30 helped by being able to run high rpm before it starts it slightly again(over 6k). I still have to look into tuning, but I do still have a stock MAF...i am thinkin that could be a stumbling block, right?

SR tuning...maybe?

SR tuning...maybe?

Re: SR tuning...maybe? (5upra)

Re: (Nismo_Freak)

Re: (Nismo_Freak)

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