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big problem someone please answer!!!!!

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Old 06-03-08, 09:19 PM
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big problem someone please answer!!!!!

uhhh how do i check if my EGI fuse is blown? how can u tell? and this is problem i go to turn car on and i hear no fuel pump pumping fuel.... i turn key then push button and it just keeps cranking... wats problem? i have other thread please read to fully understand....ne help greatly appreciated
Old 06-03-08, 10:20 PM
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Pull the fuse and look at it. You will be able to tell if it's blown or not.
Old 06-03-08, 10:22 PM
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you dont even need to pull the fuse to find out... just by looking on top of the fuse, inside you will see a copper strip... if thats not connected then ur fuse is blown... if its connected then its not blown... hope this helps... do you have an aftermartket fuel pump? maybe youve flooded ur motor?
Old 06-03-08, 11:42 PM
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yes i do have aftermarket fuel pump i have an walboro 255... the fuel pump isnt even makin ne noise so im not sure.? i dont think its flooded... i got home from school turned it off... elt it sit for about an hour then did this stuff.
Old 06-04-08, 12:08 AM
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its not fuses because i checked all and i think they were fine... and even if they werent i changed them with some spares i knew were good off my N/A so i have no idea wat problem is? does anyone have any suggestions? it sounds like its getting no fuel. i know the fuel pump isnt pumping because i cant hear it i used to be able to hear it? wat do u think is wrong? u think pump is out?
Old 06-04-08, 08:44 AM
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Slow down a bit...probably not too bad a problem.

Unless the wiring to the fuel pump was changed (since you said it's aftermarket), the fuel pump doesn't just turn on then you turn on the ignition. It turns on (1) when cranking, (2) when the airflow meter flap moves back, or (3) when you jumper the yellow plug with rubber jacket near the airflow meter with ignition on.

You can have someone crank the engine with your ear near the fuel pump (use common sense for safety) under the hatch carpet. If that doesn't work, apply power to the pump directly and see if that works.

Don't forget you may have a fuel cutoff switch, and may have bumped it off by mistake. I remember a story here about a guy that bought an RX-7 cheap that way.

Lastly, read up on flooding and make sure that's not your case (if the pump ends up being fine).
Old 06-04-08, 12:59 PM
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i am almost positive that i dont have a fuel cut-off switch. i tried to do the deflood by pulling the EGI fuse and cranking for thirty seconds. it did nothing to start my car so my car isnt flooded. i still dont hear my fuel pump on when i turn the key then push the button. does our cars have an OBD code reader? either an OBD 1 or OBD 2? if so i have a full computer ECU reprogrammer i can use. i need to hook my information lgihts back up to see if my car is throwing a check engine light. if so i will go in and find the code.... any suggestion on wat the problem could be.?
Old 06-04-08, 01:01 PM
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how do i apply power directly to the fuel pump? u think bump starting it would work? i think this happened to me before on my N/A when i dsiconnected my negative side of my battery. do u think this has anything to do with it.
Old 06-04-08, 02:05 PM
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woah... simmer down. All of the info you seek is in the FSM. No obd. there are a few threads about making a CEL and reading the codes. As stated before, jump the yellow, two prong connecter near drivers shock tower called the initial set. Turn the key to ACC and you will have power to the fuel pump. Go from there. If the pump is bad, no amount of push starting will get the car to run without fuel.
Old 06-04-08, 02:15 PM
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how do i jump it? my friend said i can just put a bent paper clip in the shape of a u and push to both connectors and it will reset initial set.. is this correct or betterway to do this?
Old 06-04-08, 02:24 PM
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Push WHAT button? Some aftermarket button for starting? Probably.

You NEED to go back and READ what pfsantos wrote on what makes the fuel pump run. One thing that crosses my mind, is if you have a aftermarket BUTTON for starting the engine, then I have to ask "what positon do you have the key in when your pressing that button?" IF your not holding the key to START when pushing that button, then the pump isn't coming online.

Well, if might come online if there is enough suction to pull the afm vane aft to make the fuel switch in the afm (series four car). IF that was the case, then the pump would come online. Been there and seen that myself.

Another thing you or whoever put that button in the car might not have figured on. When the key is HELD to Start it not only sends power to the starter solenoid, it also sends a signal to the ECU to tell the ECU that the engine is being started. That is important because during START, the ECU uses a internal fuel map to inject fuel and does NOT use the AFM for fuel during START. So if the button installer just wired the button to the battery and then to the starter solenoid, and did not use the wiring to the ECU for the START signal, then the ECU uses the afm for fuel during START.

That ain't a good thing if the engine is cold because the fuel mixture will be too little. But would be a good thing for HOT starting. Anyway, that's the way things are June 04, 2008.

Ain't got no OBD. Don't need no stinkin OBD I or II. We got brains instead and eyeballs to read with.

You find the yellow, two socket fuel pump check connector circled in purple in the attached jpg and jumper b/t the two with a paper clip or equiv. Key to ON. Pump runs. IF it does not run, the cars broke.

There's absolutly no reset function to jumpering this yellow, two socket connector. It merely puts a ground on a relays coil. You put the key to ON. Now the relay has power and a gnd and it pulls in. The contacts of the relay come together and make a circuit to the fuel pump. Pump runs.
Attached Thumbnails big problem someone please answer!!!!!-fuel-pump-check-connector-3.jpg  

Last edited by HAILERS; 06-04-08 at 02:44 PM.
Old 06-04-08, 02:45 PM
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Did you try cranking the engine with someone listening at the fuel pump like I said? To apply power directly to the fuel pump and bypass everything else (you're just testing the pump itself this way), get a portable jump start pack (essentially a battery with clamps), two wires and unplug the pump at the tank and feed power to her. Actually, if you can't unplug it there, the next plug is hidden behind the left rear shock trim.

Also, a previous poster (well_uhh) misindicated the fuel pump check connector location. It comes out of the harness near the Airflow meter, between it and the intake manifold area. The initial set connector is closer to the leading coil on the driver's front area under the hood and is used for other things (like setting idle, timing). Go over the posts and try everything one thing at a time.
Old 06-05-08, 10:36 AM
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i didnt have anyone to come listen when i cranked so i havent done that... but im about to go try the paper clip thing in the switch... and fir the other guys post i turn my key to on(i dont push it all the way like i was starting a regular rx7 or any car for that matter) then i push button... it used to just fire up but as of now no fuel pump noise... so wat else should i try if this paper clip doesnt work? the battery with a cables?
Old 06-05-08, 11:05 AM
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i tried the paper clip and it did not work... so wats the problem? anyone know? please help this is my only car for now and i need help to get it running and its kinda makin me mad... but w.e please help
Old 06-05-08, 12:23 PM
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Smile

Originally Posted by pfsantos

Also, a previous poster (well_uhh) misindicated the fuel pump check connector location. It comes out of the harness near the Airflow meter, between it and the intake manifold area. The initial set connector is closer to the leading coil on the driver's front area under the hood and is used for other things (like setting idle, timing). Go over the posts and try everything one thing at a time.
yup i'm a dumbass yesterday wasn't such a good day for me. sorry for the mis-info
Old 06-05-08, 05:30 PM
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I don't understand most of what was written.

1. Put a paper clip in the yellow connector near the RIGHT HAND strut tower area.

2. Put the key to ON, not START, just On. Not Acc but ON (actually I think it's called something other than ON).

3. IF you have done the above, the fuel pump will run. Unless the ENGINE fuse in the interior is blown or something is disconnected that was not mentioned in the thread.

WHAT button are you pushing? The RX came with no button for starting.
Old 06-05-08, 06:32 PM
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previous owner installed a push button start so u crank key to on position then push the button to start it... well when i used to do it id turn key to on position and u could hear the fuel pump working. now u hear nothin.. i tried the paper clip thing and it did nothing at least i didnt hear anything and it did not start. any suggestion on the problem? and or wat i should try?
Old 06-05-08, 11:34 PM
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I know when i purhase my t2 the owner before me put in a kill switch, and the wires came lose and the car would just die then it wouldnt start at all, i would check the wiring on the push start button, see if they came lose or anything
Old 06-05-08, 11:48 PM
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it couldnt be the push button because when i push the button it cranks just sounds like no fuel
Old 06-05-08, 11:50 PM
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u think it could be the main fuse?
Old 06-06-08, 12:00 AM
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pull one of the hosed going to the fuel filter to see if it getting fuel, or u could take the fuel pump out and test it in like a bucket of water or soemthing to see if it workin.
Old 06-06-08, 12:00 AM
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pull a spark plug and check for a gas soaked plugs. u pulled the egi fuse which would cut spark but im not sure about the pump. maybe im wrong i have never unflooded my car this way. i would always pull a connector from under the dash. its yellow if i remember correctly i would pull that connector but hold it ready to plug back in. crank the engine until it fired up then as soon as it sounded like it was running i would plug it back in. this has always worked for me. you could also check the fuel pump by taking of the feed line and cranking the engine and seeing if you get a little puddle on the ground. this is the shade tree mechanic way though haha.

so for the the run on sentence.
Old 06-06-08, 12:20 AM
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k well its not the plugs cuz u dont here no fuel pump so im pretty sure they wont be soaked... but ill try
Old 06-06-08, 12:20 AM
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wat plug r u talking about?
Old 06-06-08, 02:50 AM
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spark plugs


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