Take a look at my plugs. (running rich)
#1
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Take a look at my plugs. (running rich)
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)
(god i love macro function on cameras)
Last edited by wes65; 06-15-2008 at 02:43 PM.
#3
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.
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.
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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.
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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.
sorry for bad punctuation. I am on a 7" laptop.