Misfire Once Again

[evan546]

Looked fine until I placed it upside down

Sent from my SM-G900P using Tapatalk

Sponsored

 

[evan546]

Im back on 93 and i changed the plug it runs fine now will be switching my plugs for densos and eventually going to get an AP3

Sent from my SM-G900P using Tapatalk

 

[therealdannye]

Im back on 93 and i changed the plug it runs fine now will be switching my plugs for densos and eventually going to get an AP3

Well not for nothin here... but I put new Denso ITV22 plugs (hand-gapped to .28) in the car after 2-3k miles and then got Tune+ tuned and I've never had a single hiccup driving the car. 9k strong.

JUST SAYIN.

 

[higdominator]

Why it's a high risk tune? You can never, with absolute certainty be sure the gas your putting in your car has 0-15% ethanol mixture. If you calculate the E-85 mixture wrong things go bad in a hurry.

Yes you can. You just need to test it and buy from quality sources. My 91 is 0% Ethanol, guaranteed. My E85 tests consistently at E70 in the winter and E85 in the warm months, with one month each fall and spring of increasing/decreasing E content. It's a simple adjustment to bring your fuel up to E30. There is a small buffer zone, but if you pay attention it's easy breezy.

Im back on 93 and i changed the plug it runs fine now will be switching my plugs for densos and eventually going to get an AP3

Sent from my SM-G900P using Tapatalk

I'm willing to bet you were getting lean misfires and some det. Either your tune is way off or your mix is way high in E content.

I make it a habit to watch my AFR, OAR, and knock count religiously if I try new gas stations or an mixing in a new tank of E30 (before I'm positive I have a constant 30% level within the tank).

 

[Tune+]

Detonation in the tune, but also high cylinder temps from being lean.

I have had this happen to a customer of mine as well, but he kept switching between tunes for some reason.

 

[evan546]

What AFR should i see when im using E30

Sent from my SM-G900P using Tapatalk

 

[Dramad1]

Well not for nothin here... but I put new Denso ITV22 plugs (hand-gapped to .28) in the car after 2-3k miles and then got Tune+ tuned and I've never had a single hiccup driving the car. 9k strong.

JUST SAYIN.

I thought Denso plugs came pre gapped and you should not gap them by hand because they have the iridium coating.

 

[murphy]

So far so good on the original stock plugs running 93W tune too. Come spring I may buy new Densos and throw away the NGKs. I had Densos in my R32 and FoST with no problems ever....don't know why I tried NGKs in the Stang.

Sponsored