not getting fuel. fuel pump wont prime. new main relay. stumped...
hey guys, im new to the DA world but have been here on h-t for a little while now. i just bought my 1991 integra rs with 175k on it. i had another b18a1 with a ys1 with 80k so i swapped it in.
before i swapped it everything was fine. now, im not getting fuel to my fuel rail. my fuel pump wasnt priming so i put in a new one (im going turbo soon here so i just put in a brand new walbro). i turn the key, no fuel pump prime. the main relay is brand new.
but heres the strange thing. i turn my ignition to the "on" position and check my ecu for codes, the LED doesnt light up. so, i figured my fuse was bad. checked it, it was fine, replaced it anyways. still no luck.
im not sure what im missing here? im new to the DA world so correct me please if im missing something. any help/response is greatly appreciated.
before i swapped it everything was fine. now, im not getting fuel to my fuel rail. my fuel pump wasnt priming so i put in a new one (im going turbo soon here so i just put in a brand new walbro). i turn the key, no fuel pump prime. the main relay is brand new.
but heres the strange thing. i turn my ignition to the "on" position and check my ecu for codes, the LED doesnt light up. so, i figured my fuse was bad. checked it, it was fine, replaced it anyways. still no luck.
im not sure what im missing here? im new to the DA world so correct me please if im missing something. any help/response is greatly appreciated.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 5litereater »</TD></TR><TR><TD CLASS="quote">... my fuel pump wasnt priming so i put in a new one...</TD></TR></TABLE>Did you check to see whether there was actually power in the pump wiring?
no. but i dont understand how i could, all of a sudden, not have power to the pump. it worked perfectly before the swap which is why this is so weird.
edit: and this doesnt explain why my ecu isnt seeing any power.
Modified by 5litereater at 1:27 PM 2/11/2005
edit: and this doesnt explain why my ecu isnt seeing any power.
Modified by 5litereater at 1:27 PM 2/11/2005
i just got home. i checked and double checked all grounds. replaced my ECU with one i knew worked. theres still no sign of the fuel pump priming and im still not getting any signal from the ECU to tell me its functioning.
suggestions, answers, thoughts, flames. anything?
suggestions, answers, thoughts, flames. anything?
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 5litereater »</TD></TR><TR><TD CLASS="quote">... i checked and double checked all grounds...</TD></TR></TABLE>Did you check the live side of each of those circuits too? The ground side isn't the only place where a wire can be broken...
it ended up being the thermo ground on the harness. i had regrounded everything and made a new ground to the thermostat but failed to hookup the actual wire on the harness. when i turned the key, the pump primed perfectly.
now i have this ridiculous idle i have to go fix. thanks alot for all the help!!
now i have this ridiculous idle i have to go fix. thanks alot for all the help!!
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