Pulling Problems

[nimmes123]

Hi,

I have a peugeot 406 2.0 hdi 110 bhp. When i'm driving it suddnley losses power, and after a while the power comes back.
When i losses the power i turn it off an on again then it's fine.

Can anyone help please

[Welly]

Puggy on here might be able advise best?

It could be all sorts, is the engine light on? can you hear a loud wooshing sound under the bonnet?

You'd really need a code read first to see if any ECU faults are stored.

[nimmes123]

Hi,

Thanks for your reply. There's no engine light on no whoosing sounds under the bonnet.

I forgot to mention that when the car is idling the rev counter niddle moves down and up and the car seems like it's going to turn off but it doesen't.

Kind Regards

Nimmes123

[Welly]

Sounds like there's a problem with the engine's fueling and electronic control. The only place to start is to get the fault codes read and maybe just go about all the electrical connectors and fuses first to check they're all pushed fully home etc - maybe some work has been done recently and disturbed something?

Don't poke about with the electrics with the engine running!

[nimmes123]

Hi,

Thanks for your swift reply, I'll start looking at the fueses etc.

But could it be the Mass Aif Flow Sensor? or the Throttle Accelerator Pontentiometer sensor?

Kind Regards

Nimmes123

[Busman]

Hi,

Thanks for your swift reply, I'll start looking at the fueses etc.

But could it be the Mass Aif Flow Sensor? or the Throttle Accelerator Pontentiometer sensor?

Kind Regards

Nimmes123

Yes it could be either or both of those. Try and unplug the maf electrical connector, go for a drive and see if there is any difference.
I've had some success cleaning the tps. It's free to do and you might be lucky.

[nimmes123]

Hi,

Thanks busman i'll try that on the weekend and see whats happens.

Cheerz

[hammerman]

Hi and welcome Check out my topic about my 110 hdi hesitating.Could be the maf.When I unpluged the conector,the car felt better,but it still played up a touch.But with my new maf sensor its been faultless all week & I do 75 miles a day.viewtopic.php?f=1&t=20272

[dirtydirtydiesel]

Hi & welcome ,
Hope you get to the bottom of your prob, does sound like your maf but if that fails get your codes read.

[nimmes123]

Hi,

Thanks guy's (Hammerman and DirtyDirty diesel) I'll disconnect the connector of the MAF and see what happenes.


Cheerz guy's

[nimmes123]

Hi, Guys

On the weekend i disconnected the MAF sensor(from the connector) and had no luck. swaped the pontimeter throttle sensor from another pug, but no luck either although mines 110bhp and swaped it with 90bhp. So today i put it on a scanner and the following codes came up.

PO380-pre heated relay curcuit
PO110-intake air temprature signal
PO100-flow sensor signal.

Can anybody help and explain what these codes are and if i replace all these thing will car be 100% again.

Cheerz

[mjb]

PO380-pre heated relay curcuit

Problem with (possibly?) the low-current side of the glowplug relay... No effect in this weather

PO110-intake air temprature signal

Problem with the temperature sensor somewhere in the air intake pipework - pre turbo. This could cause slight problems

PO100-flow sensor signal.

Problem with the MAF circuit. Can cause more substantial running problems

if i replace all these thing will car be 100% again.

Safest for your wallet to assume not. The thing with electronic diagnostic stuff is usually it doesn't tell you when the fault occurred, if it's still occurring, or if it's intermittent. You need to clear the faults, see if any immediately spring back, then get the problem to happen again and then read the faults to see if there's anything new there.

Otherwise you'll end up needlessly replacing stuff that once had a hiccup over 10 years ago but has worked fine ever since.

TBH, with a rough idle, it sounds more like it might be a fuelling problem, perhaps a blockage or a dying pump? I'm no expert with diesels though...

[nimmes123]

Hi, MJB

Thank you for your swift reply. When you say there could be a problem with the air intake pipework? Are you referring to the pipes that go out from the fuel filter housing? And any pipe from the turbo?

The rough iding is intermittent it comes and goes.

When you say a dying pump which one the fuel pump or the scavenger pump?

Kind Regards

Nimmes123

[mjb]

When you say there could be a problem with the air intake pipework? Are you referring to the pipes that go out from the fuel filter housing? And any pipe from the turbo?

I said the temperature sensor, not the pipework. The sensor is (probably - not a diesel expert) attached to the engine air intake *somewhere* between the turbo and the passenger wheelarch. On the petrol V6, it's in the rear of the air filter box. Of course this is just a suggestion, as OBD fault codes are very generic due to their cross-manufacturer nature compared to dedicated Peugeot diagnostics (PP2000)

When you say a dying pump which one the fuel pump or the scavenger pump?

I don't know what you mean by scavenger pump. What I mean is it sounds like there could be a problem *somewhere* between the tank and the injectors. Very vague I know, but I'm just throwing wild guesses around in this instance

[Doggy]

IAT and MAF are combined, (one item), fits between the air filter and the flexy to the turbo. [/2d worth]