If I hold the rev's at ~6000 I get a fuel cut!
05-04-2004, 05:59 PM
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If I hold the rev's at ~6000 I get a fuel cut!
Here's my fuel setup:
AEM Universal FPR retrofitted to a Honda
Walbro 255 hp
Mitsu 450cc injectors
VAFC
So here's the problem. After the car warms up if it's idling and I hold the rev's anywhere from ~5000-6000 rpm's, i'll get a fuel cut (I'm assuming its fuel, though it could just as well be an ignition cut), but its not like hitting the stock fuel cut, it'll cut and the A/F gauge will go dead lean, but the rpm's drop to about 3500-4000 then it'll go right back and like 2 seconds later do it again.
So basically its not like the stock fuel cut you get from the rev-limiter, it all happens like five times slower than that.
Any ideas? I'm gonna play around with it tonight since I've been having VTEC activate at 5000rpm's and de-activate at 4700rpms, so I'll see if taking it back to stock has any effect.
Also, another thing thats interesting is that I've NEVER encountered any sort of fuel cut while the car was in motion and it pulls fine to redline under boost through all the gears.
Thanks guys, I'll mess around with it and see whats up.
AEM Universal FPR retrofitted to a Honda
Walbro 255 hp
Mitsu 450cc injectors
VAFC
So here's the problem. After the car warms up if it's idling and I hold the rev's anywhere from ~5000-6000 rpm's, i'll get a fuel cut (I'm assuming its fuel, though it could just as well be an ignition cut), but its not like hitting the stock fuel cut, it'll cut and the A/F gauge will go dead lean, but the rpm's drop to about 3500-4000 then it'll go right back and like 2 seconds later do it again.
So basically its not like the stock fuel cut you get from the rev-limiter, it all happens like five times slower than that.
Any ideas? I'm gonna play around with it tonight since I've been having VTEC activate at 5000rpm's and de-activate at 4700rpms, so I'll see if taking it back to stock has any effect.
Also, another thing thats interesting is that I've NEVER encountered any sort of fuel cut while the car was in motion and it pulls fine to redline under boost through all the gears.
Thanks guys, I'll mess around with it and see whats up.
05-04-2004, 06:38 PM
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honda's got the computers set up so that when the engine revs high with no load, it will cut off at like 5000-6000 rpms depending on the motor. My prelude did the same thing..
05-05-2004, 05:03 AM
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Re: (VTECR021)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTECR021 »</TD></TR><TR><TD CLASS="quote">honda's got the computers set up so that when the engine revs high with no load, it will cut off at like 5000-6000 rpms depending on the motor. My prelude did the same thing..</TD></TR></TABLE>
Sweet just the answer I was hoping for
Thanks!
Sweet just the answer I was hoping for
Thanks!
05-05-2004, 07:48 AM
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Re: (TeamCracka)
It shouldn't do that on an OBD1 and below car? It didn't do it on my car anyway, nor other honda's I've seen with stock computers.. I remember launching at 5-6K, held rock steady.
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05-05-2004, 08:16 AM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (TeamCracka)
have you checked your spark. my friends car did that for a while. so he replaced his whole fuel system. turned out that his coil pack was out.
05-05-2004, 09:58 AM
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Re: (slammed_93_hatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slammed_93_hatch »</TD></TR><TR><TD CLASS="quote">hmmm i have never heard of this or seen this. was ur prelude an auto?</TD></TR></TABLE>
5spd the car runs great, no problems with it, 14.67 stock 1/4 mile with intake only.
it never happened to my accord, or my civic
5spd the car runs great, no problems with it, 14.67 stock 1/4 mile with intake only.
it never happened to my accord, or my civic
05-05-2004, 10:08 AM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (I'll cut ya!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I'll cut ya! »</TD></TR><TR><TD CLASS="quote">revving a motor with no load is a good way to **** up your head, don't do it.</TD></TR></TABLE>
Smoking crack has already messed up YOUR head.
Smoking crack has already messed up YOUR head.
05-05-2004, 11:26 AM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (I'll cut ya!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I'll cut ya! »</TD></TR><TR><TD CLASS="quote">revving a motor with no load is a good way to **** up your head, don't do it.</TD></TR></TABLE>
Uhh ... never heard this lie before ... ever.
Care to prove us wrong? What exactly is damaged in the head from not having a load on the motor and reving it? I dont think people would be launching their cars at high RPM's if it was damaging, but what do I know
Uhh ... never heard this lie before ... ever.
Care to prove us wrong? What exactly is damaged in the head from not having a load on the motor and reving it? I dont think people would be launching their cars at high RPM's if it was damaging, but what do I know
05-05-2004, 11:29 AM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (b18c.eg.hatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18c.eg.hatch »</TD></TR><TR><TD CLASS="quote">have you checked your spark. my friends car did that for a while. so he replaced his whole fuel system. turned out that his coil pack was out.</TD></TR></TABLE>
Ya know, I was doing some searching on this problem and there are other people with similar, but not identical problems. The trend seems to be a bad coil, I'll try to track down a replacement locally and give it a shot.
Once again thanks for the replies, guys!
Ya know, I was doing some searching on this problem and there are other people with similar, but not identical problems. The trend seems to be a bad coil, I'll try to track down a replacement locally and give it a shot.
Once again thanks for the replies, guys!
05-05-2004, 05:54 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (TeamCracka)
it will cause you to blow a head gasket. What the **** do you want? A powerpoint presentation? I watched my neighbor do it just a few weeks ago. Not that thats my whole basis for saying that.
05-05-2004, 06:57 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (I'll cut ya!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I'll cut ya! »</TD></TR><TR><TD CLASS="quote">it will cause you to blow a head gasket. What the **** do you want? A powerpoint presentation? I watched my neighbor do it just a few weeks ago. Not that thats my whole basis for saying that.</TD></TR></TABLE>
Gotta get more specific if your gonna make a bold statement like the the first one. How about adding 'for long periods of time' to the original statement.
revving a motor with no load for long periods of time is a good way to **** up your head, don't do it
Gotta get more specific if your gonna make a bold statement like the the first one. How about adding 'for long periods of time' to the original statement.
revving a motor with no load for long periods of time is a good way to **** up your head, don't do it
05-05-2004, 07:00 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (dainteg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dainteg »</TD></TR><TR><TD CLASS="quote">
Gotta get more specific if your gonna make a bold statement like the the first one. How about adding 'for long periods of time' to the original statement.
revving a motor with no load for long periods of time is a good way to **** up your head, don't do it</TD></TR></TABLE>
OWNED
Gotta get more specific if your gonna make a bold statement like the the first one. How about adding 'for long periods of time' to the original statement.
revving a motor with no load for long periods of time is a good way to **** up your head, don't do it</TD></TR></TABLE>
OWNED
05-05-2004, 08:08 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (TeamCracka)
Reving your motor that high, especailly for an extended period of time can do some real damage to your engine.. I would say dont ever rev it that high with no load.. there is no reason unless you are being a JdM STunna Boi y0!
05-05-2004, 09:15 PM
#20
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Re: If I hold the rev's at ~6000 I get a fuel cut! (I'll cut ya!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I'll cut ya! »</TD></TR><TR><TD CLASS="quote">it will cause you to blow a head gasket. What the **** do you want? A powerpoint presentation? I watched my neighbor do it just a few weeks ago. Not that thats my whole basis for saying that.</TD></TR></TABLE>
Man, I just had to pick myself up off the ground I was laughing so hard.... I am still laughing... Do you have ANY clue about auto mechanics?
Man, I just had to pick myself up off the ground I was laughing so hard.... I am still laughing... Do you have ANY clue about auto mechanics?
05-05-2004, 09:18 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (dainteg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dainteg »</TD></TR><TR><TD CLASS="quote">
Gotta get more specific if your gonna make a bold statement like the the first one. How about adding 'for long periods of time' to the original statement.
revving a motor with no load for long periods of time is a good way to **** up your head, don't do it</TD></TR></TABLE>
I still wouldn't even say that is correct. There should be, if anything, less stress on an engine revved with no load.. With this in mind that would lead to longer life of the internal parts and thus less damage. If it blew a headgasket like the first assclown said then there was something else wrong that caused that problem.
Gotta get more specific if your gonna make a bold statement like the the first one. How about adding 'for long periods of time' to the original statement.
revving a motor with no load for long periods of time is a good way to **** up your head, don't do it</TD></TR></TABLE>
I still wouldn't even say that is correct. There should be, if anything, less stress on an engine revved with no load.. With this in mind that would lead to longer life of the internal parts and thus less damage. If it blew a headgasket like the first assclown said then there was something else wrong that caused that problem.
05-06-2004, 10:03 AM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (I'll cut ya!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I'll cut ya! »</TD></TR><TR><TD CLASS="quote">it will cause you to blow a head gasket. What the **** do you want? A powerpoint presentation? I watched my neighbor do it just a few weeks ago. Not that thats my whole basis for saying that.</TD></TR></TABLE>
That makes no sense. People driving around running an OEM headgasket boosting like 15lbs and shifting at redline wont blow them out, but your buddy did with zero load on the motor? There's obviously more to it than that
The whole point is that apparently it ISNT normal and if that **** is happening at idle, I dont want it happening at WOT and blowing my motor.
That makes no sense. People driving around running an OEM headgasket boosting like 15lbs and shifting at redline wont blow them out, but your buddy did with zero load on the motor? There's obviously more to it than that
The whole point is that apparently it ISNT normal and if that **** is happening at idle, I dont want it happening at WOT and blowing my motor.
05-06-2004, 12:32 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (Hybrid93Eg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Eg »</TD></TR><TR><TD CLASS="quote">I still wouldn't even say that is correct. There should be, if anything, less stress on an engine revved with no load.. With this in mind that would lead to longer life of the internal parts and thus less damage.</TD></TR></TABLE>
I understand your logic. however, you are completely wrong.. go talk to anyone who is knowledgable when it comes to engines and they will tell you otherwise.
I understand your logic. however, you are completely wrong.. go talk to anyone who is knowledgable when it comes to engines and they will tell you otherwise.
05-06-2004, 12:39 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (TeamCracka)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TeamCracka »</TD></TR><TR><TD CLASS="quote">I dont think people would be launching their cars at high RPM's if it was damaging, but what do I know </TD></TR></TABLE>
that's the funniest thing I've read today LOL . . . thanks . . . .
</TD></TR></TABLE>that's the funniest thing I've read today LOL . . . thanks . . . .
05-06-2004, 12:42 PM
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Re: If I hold the rev's at ~6000 I get a fuel cut! (miguel6632)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miguel6632 »</TD></TR><TR><TD CLASS="quote">
OWNED</TD></TR></TABLE>
um nooooo
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">miguel6632 has been a member for 80 days.</TD></TR></TABLE>
Don't bother causing trouble with anyone, because you haven been here very long..
OWNED</TD></TR></TABLE>
um nooooo
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">miguel6632 has been a member for 80 days.</TD></TR></TABLE>
Don't bother causing trouble with anyone, because you haven been here very long..