Miss in my race motor
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Joined: Dec 2005
Posts: 4
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From: Jacksonville, Fl, Duval
Miss in my race motor
have a H-23 race motor, relatively stock by rules. After a rebuild, was experiencing a miss between 5800 and 6200. It would miss and finally pull thru to the redline. I emptied the fuel, and went to straight race fuel, 103 unleaded and it did help but the miss was still there. I coded a 23 ( knock sensor) but do not know why, it did not go into fail safe mode.
Any suggestions on where to start. Is it distributor or fuel?
Any suggestions on where to start. Is it distributor or fuel?
Re: Miss in my race motor (Hawkze_2.3)
i would guess its fuel related. That rpm range is probably when your injector is at its peak (stays open the longest) and probably just cant flow enough fuel either because its dirty or maybe even the fuel filter is dirty.
I'd suggest to change the fuel filter and run some injector cleaner. Also just for the hell of it check the plugs and the distributor cap too.
I'd suggest to change the fuel filter and run some injector cleaner. Also just for the hell of it check the plugs and the distributor cap too.
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Joined: Jul 2005
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From: Nobody fcuks with the Jesus...
Re: Miss in my race motor (Rosko)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hawkze_2.3 »</TD></TR><TR><TD CLASS="quote">Check your knock sensor first if that's what the code was for...</TD></TR></TABLE>
yup. check the sensor first. that's the biggest thing.
you might get rid of the pinging by retarding your timing slightly rather than going to a higher octane.
fuel pump/filter/injectors are hardly the culprit on a race motor--at least one that's well maintained.
yup. check the sensor first. that's the biggest thing.
you might get rid of the pinging by retarding your timing slightly rather than going to a higher octane.
fuel pump/filter/injectors are hardly the culprit on a race motor--at least one that's well maintained.
Re: Miss in my race motor (The_Sober)
All the knock sensor does is pull timing when the motor is knocking. Sure the sensor could be bad, but why is the motor knocking in the first place. Since its a relatively stock motor there should be no reason for it to knock.
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Joined: Jan 2004
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From: Further down the spiral, TX, usa
Re: Miss in my race motor (Rosko)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rosko »</TD></TR><TR><TD CLASS="quote">All the knock sensor does is pull timing when the motor is knocking. Sure the sensor could be bad, but why is the motor knocking in the first place. Since its a relatively stock motor there should be no reason for it to knock. </TD></TR></TABLE>
What I said was check the knock sensor...they're very delicate and get f'ed up all the time.
What I said was check the knock sensor...they're very delicate and get f'ed up all the time.
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