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Old 04-22-2002, 12:17 AM   #1
iBlueVirus
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Default Engine Chock in 2nd at WOT?

I was at autox today and I was in 2nd gear. As I was crossing the finish at WOT, the engine chock like it was engine breaking. My car is stock expect for the tires. Falken A. 215/45/16. Help?
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Old 04-22-2002, 12:58 AM   #2
ChosenWon
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Was it your rev-limiter? You said you were at full throttle comming across the finish....
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Old 04-22-2002, 01:32 AM   #3
Tim Sanderson
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Did it go out afterwards? I wouldnt worry about it. Take it to the dealer & have them check it out if your worried. I'll bet it's your o2 sensors. OBD2 have one before & one after the catalytic converter. At wide open throttle your probably dumping unignited fuel into the catalytic causing it to burn hot & giving a temporarily false reading. Check your spark plugs & make sure they are gapped correctly and that they are not fouled.
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Old 04-22-2002, 01:44 AM   #4
iBlueVirus
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nope not the rev-limiter. I hit it before and I know how it's like. this one felt like bad down shifting or engine breaking... more like engine breaking... Yeah, I am going to bring it in tomorrow and have them check it out... I don't worry about it too much, but just like to know why.
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Old 04-22-2002, 03:10 PM   #5
Chuck
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How much gas was in the tank and was it right after a sharp turn? Could've been that retarded fuel starvation deal.
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Old 04-22-2002, 05:48 PM   #6
iBlueVirus
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it wasn't right after a sharp turn. I had about 2.5 - 4 gallon in it...

Last edited by iBlueVirus; 04-23-2002 at 01:00 PM.
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Old 04-23-2002, 02:34 AM   #7
Blindeye_03
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I ALWAYS race on atleast 1/2 tank or a full tank. You prolly experienced fuel starvation.

-justin
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Old 04-23-2002, 10:25 AM   #8
Corey
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My vote is also for fuel starvation. That is was too little gas to be auto-xing with.

Was the finish line at the end of a long right hand turn?

I usually auto-x with at least 3/4 tank. Anthing less than that and you are asking for fuel starvation.

I've even experienced it with 1/2 tank already and R-compounds with a ton of body roll.

Corey

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Old 04-23-2002, 12:13 PM   #9
Patrick Olsen
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I have no idea what an engine "chock" is, but if chock = hesitation than I agree that you almost certainly experienced fuel starvation. I, too, have experienced fuel starvation with up to nearly 1/2 tank of gas in the car. That was in my '99 2.5GT. Strangely enough, my '97 seems nearly impervious to fuel starvation - I've run it down to the E on the track and haven't experienced any "chocking".

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Old 04-23-2002, 12:59 PM   #10
iBlueVirus
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I think most of the people race with 1/4 or less at the track... it only happened at the straight finish. It was after a left hand turn, but not too sharp... I've been racing with 1/4 tank for a while and this is the first time... but it's hard to test it out since they change the track everytime... oh well...
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Old 04-23-2002, 03:13 PM   #11
CosmoTheCat
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chock = choke

And my vote goes to fuel starvation. I've suffered from it several times out on the streets.
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Old 04-23-2002, 03:56 PM   #12
iBlueVirus
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okiedo! that is actaully a good thing to hear... I still have not gotten a chance to bring this baby in. (midterms)... but I don't think they can reproduce the problem anyway... thanks guys! I guess I'll just go with 1/2 tank next time...
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Old 04-23-2002, 04:52 PM   #13
Corey
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Quote:
Originally posted by iBlueVirus
I think most of the people race with 1/4 or less at the track...
I don't know anyone in my region that owns a Subaru and races with less than 1/2 tank. And we usually have 10+ Subaru's at each event.

When I started auto-x I used to go with 1/4 tank. It took just the right set of circumstances but eventually I experienced starvation. Then I got it more and more till someone enlightened me as to why my helmet was hitting the windshield every so often.

Live and learn...

Corey
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