need advoce maf sensor

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johntl
1.8 16v
Posts: 95
Joined: Fri Sep 24, 2010 7:38 pm
Location: cleveland , england

need advoce maf sensor

Post by johntl » Mon Jan 01, 2018 6:23 pm

In the last 2 weeks the car has got flatter and flatter , I drove home last night and you had really push the car hard on throttle to get it to go, nothing like I'am used to !
Having read the threads on here, at first I thought it might be the EGR but you needed to use 3k revs to get any response , so I disconnected the MAF as recommended to see if any effect and I got my old performance back!!
Obviously the MAF sensor needs either cleaning or replacing, my question is IS IT OK TO RUN THE CAR WITH THE MAF SENSOR DISCONNECTED, WILL DO ANY HARM ????

Blue
1.8 8v
Posts: 32
Joined: Sun Aug 28, 2011 4:03 pm

Re: need advoce maf sensor

Post by Blue » Mon Jan 01, 2018 8:16 pm

Hi, im no mechanic, but i think the maf sensors the amount of air the engine is intaking ie at idle or at speed, so it will the send this to the ECU to then control how much fuel is required to preduce the most economical output, so im quessing it my not harm the car but may run very rich and spluttery if you know what i mean. If im wrong then il hold my hands up. But thought id reply, if anyone else can shed anymore light. :cheesy:
Dave.

dirtydirtydiesel
3.0 24v
Posts: 1181
Joined: Sun Apr 28, 2013 11:02 pm
Location: Coalville, Leics.

Re: need advoce maf sensor

Post by dirtydirtydiesel » Mon Jan 01, 2018 8:38 pm

:arrowu: couldn't have put it better myself :) :arrowu:

It won't do any harm as such but it'll be far from ideal as it'll be on base settings & running very rich.
ie: poor economy, don't waste you money on cheep Chinese ones.
Get an o.e V.D.O Siemens one from E.C.P or G.S.F, or try online.
2002 110 HDi estate, Rapier in monaco blue! ( found quite a bit more power :cheesy: )
1999 3.0 V6 SE coupe in Diablo Red ( my baby )
2006 206 1.4 16v sport in Aegean blue ( wife's shopping trolley :roll: )

pp2000 owner / user, can offer Diagnostic's / fault code, reading / clearing for beer tokens in Leicestershire.

johntl
1.8 16v
Posts: 95
Joined: Fri Sep 24, 2010 7:38 pm
Location: cleveland , england

Re: need advoce maf sensor

Post by johntl » Mon Jan 01, 2018 9:25 pm

thanks guys, will fit new one asap , back to work wed, try to get sorted 2moro ??? :roll:

Ps: HAPPY NEW YEAR TO ALL

PeterN
3.0 24v
Posts: 1291
Joined: Sun Mar 04, 2012 7:04 pm
Location: Charmouth, Dorset

Re: need advoce maf sensor

Post by PeterN » Tue Jan 02, 2018 12:50 pm

Assuming this is a diesel engine it won't run rich because if you increase the fuel in you will increase the power out as the diesel has no throttle control when you press the accelerator it just increases the fuel input. The only thing that can make it run rich is an obstruction in the air supply.

With the MAF disconnected the fuel input will revert to a pre programmed default setting and reduce the amount of fuel available at low revs, typically below 2000 rpm, hence the poor performance. It wont hurt the car to use it like this, all its doing is reducing the power output.

I have never bought a cheap new one but have so far had success with a used original one. https://www.ebay.co.uk/itm/Peugeot-406- ... Sw241Yd24y

Peter

johntl
1.8 16v
Posts: 95
Joined: Fri Sep 24, 2010 7:38 pm
Location: cleveland , england

Re: need advoce maf sensor

Post by johntl » Tue Jan 02, 2018 4:44 pm

The car is a 2001 2.0 hdi 110
?? The part No on mine is 49762112 on bar code and 120101 other marking , which is different to the siemens one on E -bay, or are they all the same ?
mine is 5 wire 6 pin connection

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