Year of Manufacture *: 2006
Engine Size and Code *: 1.6 16v Dv6
( Optional ) Scanner Used: maxidas & Autocom
( Optional) Fault Codes: P0087 low fuel pressure
I have this Fiesta 1.6 dv6 engine, came from a mobile mechanic.
Car runs ok, until under load and loud diesel knock and clouds of black smoke.
New Egr valve, Fuel filter and 4 reconditioned injectors fitted previously.
Carried out various tests. Fuel quality ok, checking specific gravity. Found injector correction factors had not been done, coded in and still the same, carried out leak off test and found excessive leak back, one injector had twice the amount.
Sent back injectors to diesel specialist. He said nothing wrong with them within tolerance?
Refitted and retested leakback, had improved, ( suspect diesel specialist had made some adjustments ) leakback within 20 %.
When low fuel pressure code is set when driving,and knock occurs, the rail pressure is 10500 psi and drops to 6000 psi.
Scoped the injectors in the workshop and all patterns identical and look ok.
I suspect these are bad injectors, how can I prove this.
Other than sending them away elsewhere to test or fit new injectors.
Any suggestions appreciated.
Thanks
Joe
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