fuel pump does not turn on

dszer89 · 07-22-2010, 02:06 PM

i have a 97 gsr and it was working until one day i went to go start it and the brand new fuel pump wont prime.
i put the old one back in and it still wont prime ,checked all fuse and relays still nothing, then i ran a wire from the battery and it prime but engine still wont start???? now im stumped and need help all ready checked the main relay

Targa250R · 07-22-2010, 02:13 PM

Quote:

Originally Posted by dszer89

all ready checked the main relay

"Checked"? Or replaced?

The main relay controls power to the ECU in addition to the fuel pump. Bad main relay = no fuel injection.

fcm · 07-22-2010, 04:41 PM

Actually the PGM-FI Main Relay supplies power to the fuel pump, [fuel pump relay] the fuel injectors, [injector relay] and power to a few engine valve/solenoids and a 12V+ "signal" to the ECU/ECM, [injector relay] although the result is the same, "Bad main relay = no fuel injection"

The PGM-FI Main Relay is a common problem on Honda/Acura but in many cases, easly fixed...

http://techauto.awardspace.com/mainrelay.html
http://www.tegger.com/hondafaq/mainrelay.html 94

07-22-2010, 02:06 PM	#1
dszer89 Honda-Tech Member Garage is empty, add now Join Date: Sep 2009 Posts: 23 iTrader Rating: (0)	fuel pump does not turn on i have a 97 gsr and it was working until one day i went to go start it and the brand new fuel pump wont prime. i put the old one back in and it still wont prime ,checked all fuse and relays still nothing, then i ran a wire from the battery and it prime but engine still wont start???? now im stumped and need help all ready checked the main relay

07-22-2010, 04:41 PM	#3
fcm Old Fart Garage is empty, add now Join Date: May 2004 Location: kelowna, bc, canada Posts: 22,741 iTrader Rating: (0)	Re: fuel pump does not turn on Actually the PGM-FI Main Relay supplies power to the fuel pump, [fuel pump relay] the fuel injectors, [injector relay] and power to a few engine valve/solenoids and a 12V+ "signal" to the ECU/ECM, [injector relay] although the result is the same, "Bad main relay = no fuel injection" The PGM-FI Main Relay is a common problem on Honda/Acura but in many cases, easly fixed... http://techauto.awardspace.com/mainrelay.html http://www.tegger.com/hondafaq/mainrelay.html 94 __________________ You get what you pay for. Nothing is impossible, the impossible takes longer and costs more money.

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fuel pump does not turn on