2008 Peugeot 308 1.6hdi
Not starting since engine swap

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Jon
Driver
1 points

Problem added: Oct 6, 2020 (2 weeks ago)
Swapped a blown engine out. Did the usual servicing, all ok. Scanner reports no fuel pressure. Changed the fuel pressure sensor, still no fuel pressure. cracked the pipe at an injector and plenty of pressure. Engine won't start.

Car details
Car: Peugeot 308
Variant: 1.6hdi
Model Year: 2008
Category: Engine & Drivetrain
Electrics, ECU, Warnings & Lights
Replies and Fixes
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bustedknuckles
Legend
2,000 points

Oct 6, 2020 (2 weeks ago)
Possible faulty injector ?or is filter restricting the flow or is pipe work correct feed and return?
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whittingehame
Legend
15,313 points

Oct 6, 2020 (2 weeks ago)
Crack ALL the pipes to bleed / check supply ok?
Avatar
Jon
Driver
1 points

Oct 6, 2020 (2 weeks ago)
Replying to post by bustedknuckles:
Possible faulty injector ?or is filter restricting the flow or is pipe work correct feed and return?
New fuel filter fitted. 1 faulty injector I could understand but not all 4. Engine was out of a runner.
It's as if the ECU doesn't see the fuel pressure in the rail and therefore doesn't open the injectors.
Avatar
Jon
Driver
1 points

Oct 6, 2020 (2 weeks ago)
Replying to post by whittingehame:
Crack ALL the pipes to bleed / check supply ok?
Supply is ok. Cracked all the injector pipes. Common rail engine so cracking 1 means I have to build the pressure again before the next.
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bustedknuckles
Legend
2,000 points

Oct 6, 2020 (2 weeks ago)
Possibly then fuel pressure regulator or sensor not plugged in or plug not fully home ,causing insufficient pressure in rail and if one injectors faulty causing fuel to be lost return spill,or maybe pump not producing sufficient pressure ,would be looking at fuel pressure readings first
Avatar
Jon
Driver
1 points

Oct 6, 2020 (2 weeks ago)
Replying to post by bustedknuckles:
Possibly then fuel pressure regulator or sensor not plugged in or plug not fully home ,causing insufficient pressure in rail and if one injectors faulty causing fuel to be lost return spill,or maybe pump not producing sufficient pressure ,would be looking at fuel pressure readings first
Live data showed zero fuel pressure. We changed the sensor and it still shows zero pressure at rail when we know there is pressure (fuel spurts when injector pipe is cracked)
Avatar
bustedknuckles
Legend
2,000 points

Oct 7, 2020 (2 weeks ago)
You probably just have residual pressure ,not enough for fine spray ,so you need to work out if the pumps working correctly ,was it timed /pinned up with timing ,as there’s a critical point of operation or is it the pressure regulator that’s faulty and telling the ecm false information,then there’s the pressure regulator is it plugged in reading ok.please update with findings
Avatar
paulieone
Legend
1,726 points

Oct 7, 2020 (2 weeks ago)
Did you get just a bare engine and swapped over all ancillaries and wiring etc.
Not good practice cracking pipes off....over 250 bar of pressure required in rail for starting!!
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