wes65

iTrader: (7)

So, i thought i would be able to read my spark plugs and see what was going on. I guess not. Can anyone help me out? My car has been getting richer and richer (as indicated by my uego) I used to be running 12.5:1 from 0-5psi and then 11.5:1 from 5-14psi. Now, i am getting low 10's under boost. Cruise used to be around 18:1 and now its around 14:1. Idle used to be around 13:1 now it is high 10's/low 11's. Sometimes my idle afr just stays at 10.0:1. I would think that if the car was running this rich at idle, it would be sluggish to rev and you would smell gas in the exhaust. Neither is true. So, i am thinking maybe a problem with my uego. The sensor is at the end of the down pipe right before the flex piece. Here is a picture of my spark plugs.



(god i love macro function on cameras)

wes65

iTrader: (7)

Oh, this is after about 300 miles and some boost while passing or owning some douche on the interstate.

cjernigan

iTrader: (13)

Why does it look like the first three plugs have an almost non-existent gap while the 4th has a large gap? Shadow?
Rich mixture at idle makes for good throttle response actually. 10:1 is a little over board but it does help some when compared to a much leaner 15:1 at idle. Atleast that's been my experience when accel enrichment isn't being used.

wes65

iTrader: (7)

I just took a little cruise in the car and it is around 10:1 all the time. Much of the time, the uego is reading 10.0. Under full throttle, the car bucks, and burps, and struggles. Something has changed. I haven't messed with the car any. The car was running perfect. I put down 219whp a week ago and now this. I am a little confused.

Braineack

iTrader: (62)

Logggggggggggggggggggggggggggggggggggggggggggg.

Rafa

iTrader: (22)

lollllllllllllllllllllllllllllllllll !

Bryce

iTrader: (24)

Because plug reading doesn't work unless you pull them right after a WOT run.

wes65

iTrader: (7)

yeah, yeah. I should've known you were going to say that.

Braineack

iTrader: (62)

well then!

it rolls down stairs and over your neighbors' dog.

magnamx-5

iTrader: (7)

uhh wess i am thinking your eugo is out of wak
Most Ms users have issues getting aem's to interface. I would recalibrate and then check the WB grounds to make sure you aren't getting voltage offsets.

wes65

iTrader: (7)

well, i figured it out. The wire going to my AIT sensor was broken. I guess thats what i get for getting a connector from a junk yard and using the wires that were on it. I figured it out because i went into megatune and the manifold air temp said 43* now that i think about it, the car ran better at night when it was in the 50's and ran like **** today when it was around 90.

sorry for bad punctuation. I am on a 7" laptop.

Braineack

iTrader: (62)

glad you found it!

win for you.

bryantaylor

iTrader: (5)

and why are you running a 6 heat range? but they look great IMO, i dont see any detonation.

Braineack

iTrader: (62)

because a 6 heat range for a 1.8L is one step colder

bryantaylor

iTrader: (5)

i see said the blind man

wes65

iTrader: (7)

Yep, anybody have any input on whether 6 is cold enough? Should i go with 7?

Braineack

iTrader: (62)

is a good plug to have.

wes65

iTrader: (7)

what is? the bkr6e?

Braineack

iTrader: (62)

yeah, you technically want the hottest plug you can get away with.

wes65

iTrader: (7)

I see, so in other words, since i have no knock with a heat range 6, there is no reason to go colder.