Isx wont stay running

[Wheels113]

Have 2006 9900i with isx parked at night then next morning it wouldnt start gave some starter fluid started but idled very rough then dies thought mayber it ran outta fuel changed fuel filters but still wont stay running little bit white smoke when it does start any ideas why?

[Rawze]

could be a lot of things including the turbo stuck at 100% closed.

[Chamberpains]

Any codes?

[Signature620]

Could also be the lift pump - Is it wet on the outside with fuel and does it change pitch when it's running and you grab it?

[Wheels113]

Has code 128 fo1 pid 094 a

[Chamberpains]

Its a low fuel pressure code. Since you changed the fuel filters, the next thing you'll have to check is the mechanical fuel pump, lift pump, and if there is any restrictions or air sucking into the fuel system.

[Waterloo]

If you have a Davco unit, check those o rings...

[DDlighttruck]

(10-20-2019 )Chamberpains Wrote:  Its a low fuel pressure code. Since you changed the fuel filters, the next thing you'll have to check is the mechanical fuel pump, lift pump, and if there is any restrictions or air sucking into the fuel system.

I had my truck in a shop last winter, while I was there I borrowed a drain pan and changed my Davco filter. Truck wouldn’t start after that. They put an electric lift pump on it in the morning, fired right up.

I spend way too much time staring at my Davco and worrying about filter life and fuel quality

[Lonestar10]

if truck wouldnt start because electric pump died it tends to send shrapnel to the gear pump so gear pump might have finaly pumped its final pumping