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Car won't start after Fuel pump was put back on


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#1 Dinka

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Posted 18 September 2016 - 12:06 AM

So today I took off the fuel pump assembly to see if the fuel filter was bad well it wasn't so I put everything backin again and tried to start no go! tried 6 times and stopped as I didn't want to drain the Battery what could have gone wrong ?? I'm absolutely sure I put the hoses in correctly and the pump ran the first time i put the car to ignition as I heard it I didn't put the seat back or cover it up because I didn't want to take them off again if I run into any issues glad I didn't
 
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I then took off the fuel line to the far Left and it squirted out petrol so it has pressure I think then again I put the key to ignition to see and the pump ran again for like 2-3 seconds and stop then I took off another hose in the engine bay after a Fuel Damper and again fuel sprayed out in pressure and then put it into a bottle and put the key on ignition and it was pumping again for 3 seconds and stopped.... Idk whats happening atm.
 
 
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P.S - I didn't take off the E/G fuse and crank the engine to put the pressure out before removing the lines I just opened the Fuel cap and let the air out... What I'm trying to tell is I didn't meddle with any fuses and forget to put them back.


#2 RX25SE

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Posted 18 September 2016 - 08:16 AM

ECU controls fuel pump and will run the pump for a few seconds when key is first turned on. If the ECU doesn't see an 'engine start' condition within that time, it kills the pump. Normal.

 

Double check your hose connections.

 

 

 

BTW. If you were removing the filter, why not just replace it?


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#3 Dinka

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Posted 18 September 2016 - 12:21 PM

ECU controls fuel pump and will run the pump for a few seconds when key is first turned on. If the ECU doesn't see an 'engine start' condition within that time, it kills the pump. Normal.

 

Double check your hose connections.

 

 

 

BTW. If you were removing the filter, why not just replace it?

 

Because I can't find it locally and this is my Daily so I ordered one off ebay when it comes I'll replace it :) Thanks for your reply but it didn't help my problem.



#4 duncanm

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Posted 18 September 2016 - 05:40 PM

Diagnostic steps one must always use when things you touched don't work any more.

 

1. what could I have possibly forked up?

2. check items identified in 1.

3. reduce your assumed level of intelligence you used when putting it back together

4. return to step 1.



#5 Robert

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Posted 18 September 2016 - 10:57 PM

Did it start before pulling the fuel pump out ?

cause what Jase discribed is exactly what everycar does
When the car doesn't start it will cut the fuel pump

It only primes for 3 or so seconds
It should have fuel flow during cranking

#6 surge

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Posted 19 September 2016 - 12:10 AM

Did you mess with any o-rings ?

#7 El_Freddo

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Posted 19 September 2016 - 12:21 AM

Have you let the fuel pump adequately pressurise the system?

That said I'd think with the amount of cranking you described the pump would've built enough pressure for the engine to fire.

You haven't touched any fuses or relays for sure? Haven't been playing with wires above driver's kick panel (such as diagnostics plugs)?

Is the correct line being pressurised? I don't know if it's possible to cross the return line with the IN line but it's a thought. I doubt the fuel regulator would let fuel in from the wrong direction.

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#8 Dinka

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Posted 19 September 2016 - 12:58 AM

Ok it was because the Cam sensor wire had some how come loose! Reconnected it and all fired up Thanks everyone for the help :)



#9 Guest_KONG_*

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Posted 19 September 2016 - 08:08 AM

I bet it's the Cam sensor wire

#10 Jimbo

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Posted 21 September 2016 - 06:36 PM

I bet it's the Cam sensor wire

Like Kong says,sometimes when doing fuel pump checks the camshaft position sensor wires can become loose.


Edit: I nearly choked on my garlic bread when I read that, you swine.


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