Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum

Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum (
-   Focus Tuning Chat (
-   -   What would cause this drop? (

BowerR64 07-11-2011 02:52 AM

What would cause this drop?
Tom said i had some bad gas about a week ago (Quick Trip) 91 fuel. The other day i put in a half a tank of shel Vpower stuff and i noticed on the way back from a 60mile round trip it acted a little different.

Is this the signs of bad plugs? or maybe a few bad coil packs? why does #3 and 4 show little drops? They were the 2 before that had bad drop outs as well.

2 different fuel types? makes me wonder if i dont have somthing wrong. Bad gap maybe?

What is the plug order of the duratec 2.0 maybe i can swap around the coil packs and see if it changes the drop in the other cylinders?

1turbofocus 07-11-2011 10:02 AM

Thats spk knock


BowerR64 07-11-2011 02:34 PM


Originally Posted by 1turbofocus (Post 3737857)
Thats spk knock


Yeah i know its spark knock but is it getting to much fuel? is it not burning it all out? to much timming on those 2? plugs maybe?

Can i go in and adjust the timming back a few clicks myself on those 2 and see if it smooths out?

Its not really that much but im just wanting to learn a little about it is all.

I have this tool, ide like to get some use out of it.

Also, why do they seem to drop out or retard when the RPMs are down?

1turbofocus 07-11-2011 05:19 PM

I can make the changes when changes are needed , your fine for now , next thing is to get the wide band working properly


All times are GMT -5. The time now is 06:06 PM.

Search Engine Optimization by vBSEO 3.6.1