Fuel pump off then on??
06-07-2008, 10:11 AM
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Fuel pump off then on??
Hello all and thanks for the help in advance...
Ive had this problem before in a simalar way but not like last night. I took my built b16 boosted to the track when i would turn the key the fuel pump would prime but when i would try to start the car it would drop to 0psi....i would pull the main relay unhook the battery and it would fire up..Letting it sit there and idle in the stage lanes it was fine but when you would try to turn it off and start it no pump???
Has anyone had this problem before ive check my grounds...and today the car started up fine with no issues? is it carma? or should i be looking for somthing? Thanks
Ive had this problem before in a simalar way but not like last night. I took my built b16 boosted to the track when i would turn the key the fuel pump would prime but when i would try to start the car it would drop to 0psi....i would pull the main relay unhook the battery and it would fire up..Letting it sit there and idle in the stage lanes it was fine but when you would try to turn it off and start it no pump???
Has anyone had this problem before ive check my grounds...and today the car started up fine with no issues? is it carma? or should i be looking for somthing? Thanks
06-07-2008, 10:58 AM
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Re: Fuel pump off then on?? (tegman23)
This can be a few things.
My guess is either a bad relay or the main capacitor in your ecu is going bad. It is not allowing the ecu to prime the pump.
When this happens does the car throw a constant check engine light?
My guess is either a bad relay or the main capacitor in your ecu is going bad. It is not allowing the ecu to prime the pump.
When this happens does the car throw a constant check engine light?
06-07-2008, 11:25 AM
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i brought an extra main relay and switched them back and forth did the same thing...
and for codes it was not throwing any codes the whole night hondata was running perfect
and for codes it was not throwing any codes the whole night hondata was running perfect
06-07-2008, 12:42 PM
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Re: (tegman23)
I'm having the same problem. i thought the problem was my killswitch was not working properly. checked it and that wasn't the problem. in my case, i found that wiggling my fuel pump wire would cut the power to the pump or give it power. I'm pretty sure i have a short some where but i haven't had any time to do re wire it 
06-09-2008, 07:45 PM
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ouch...if somone figures it out let me know..its very anoying..i let my car idol in the stage lanes at the track in fear the pump may not kick on when im up
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06-11-2008, 04:26 PM
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Re: (tegman23)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegman23 »</TD></TR><TR><TD CLASS="quote">ouch...if somone figures it out let me know..its very anoying..i let my car idol in the stage lanes at the track in fear the pump may not kick on when im up</TD></TR></TABLE>
i had to do the same thing last time i was at the track. have to wait a couple minutes and then the pump would start working again to be able to start it back up. its only done this like twice a year...but still very odd. main relay soldering is good and so is all wiring. the pump is only a couple thousand miles old.
i had to do the same thing last time i was at the track. have to wait a couple minutes and then the pump would start working again to be able to start it back up. its only done this like twice a year...but still very odd. main relay soldering is good and so is all wiring. the pump is only a couple thousand miles old.
06-11-2008, 07:02 PM
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Re: (a1320addict)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320addict »</TD></TR><TR><TD CLASS="quote">How old is the car? Sounds like a short or bad connection.
You're probably best off rewiring right off the alternator with a relay and a switch.</TD></TR></TABLE>
Its a 1992 Da obd1 nothing is hacked all pluged in...I was going to wire it to a new relay but, if its doing that somthing is wrong, and i would rather work the bugs out..im going to try to find a short somewhere..
You're probably best off rewiring right off the alternator with a relay and a switch.</TD></TR></TABLE>
Its a 1992 Da obd1 nothing is hacked all pluged in...I was going to wire it to a new relay but, if its doing that somthing is wrong, and i would rather work the bugs out..im going to try to find a short somewhere..
06-15-2008, 07:58 PM
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Re: (tegman23)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegman23 »</TD></TR><TR><TD CLASS="quote">please help someone the car did this 3 times today.. Do you think i should just wire it off the alternator to a new relay? </TD></TR></TABLE>
do you have a kill switch? the reason i ask is because my female connectors to the switch had burnt up causing a bad connection. i have been experinceing the same thing as you have for a few months now. so all i did was re wired the connections to the switch yesterday and problem solved.
do you have a kill switch? the reason i ask is because my female connectors to the switch had burnt up causing a bad connection. i have been experinceing the same thing as you have for a few months now. so all i did was re wired the connections to the switch yesterday and problem solved.
06-15-2008, 08:15 PM
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mine did it again yesterday.. impretty sure its the solder connections inside the main relay. VERY VERY common problem on older hondas. my old accord did the same thing until i resoldered the main relay. im gonna pull mine off tommorow and check it.
06-15-2008, 10:16 PM
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Re: (mike93eh2)
main relays are known for doing this, the solder cracks and expands when heated during the summer and is known for causing problems
06-16-2008, 01:09 PM
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Re: (EARLdaSQUIRREL)
I do have a kill switch but i disconnected it thinking it could of been that...but the car does it every once in a while.. some days drive all day nothing some times it wont turn on...i hate this should i just rewire a new relay??
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