Jazzman Posted September 24, 2007 Report Posted September 24, 2007 I've had the car a Y reg TDi 1.9 for about a year and I'm finding that it's performance is gradually worsening. I'm struggling like mad to get it to go up hills and I find that I generally really have to push it hard to get started out off junctions etc. Is there something wrong and has anyone else experienced this? What's recommended (can't afford a new car!!!)Cheers, Jon Quote
big_kev Posted September 24, 2007 Report Posted September 24, 2007 Unplug the MAF sensor first to see if it makes a difference.... If it makes no difference your MAF is probably knackered.... If it gets worse then your MAF is probably ok. Quote
NikpV Posted September 24, 2007 Report Posted September 24, 2007 (edited) If it gets worse then your MAF is probably ok. not necessarily .... ours was worse when uplugged but immeasurably better when replaced .. they dont just 'go' suddenly they seem to become less responsive over time to the OP - how many miles has it done - if they are going it seenms to start at 50/60k and get steadily worse... Edited September 24, 2007 by NikpV Quote
big_kev Posted September 24, 2007 Report Posted September 24, 2007 If it gets worse then your MAF is probably ok. not necessarily .... I did say probably.. :blink: Quote
crow2727 Posted September 24, 2007 Report Posted September 24, 2007 i just bought a ford galaxy to 1998 1.9 tdi 56k on clock i have lose of power too but tonight i just noticed a lot of bluey white smoke it cleared itself after a while i was driving.gets smokey when on the red line on the diesel gage not sure i done the diesel filter still the same,thanks Quote
NikpV Posted September 24, 2007 Report Posted September 24, 2007 (edited) I did say probably.. :blink: I know I just didn't want the OP to rule it out i it was worse :lol: i just bought a ford galaxy to 1998 1.9 tdi 56k on clock i have lose of power too but tonight i just noticed a lot of bluey white smoke it cleared itself after a while i was driving.gets smokey when on the red line on the diesel gage not sure i done the diesel filter still the same,thanks umm aux heater - ??? Edited September 24, 2007 by NikpV Quote
Jazzman Posted September 25, 2007 Author Report Posted September 25, 2007 Yeah, people are probably right with the MAF sensor, just another thought though, will not have a fuel cap make any difference to the fuel pressure in any way? I had mine nicked a while back, could this be part of the issue? Cheers, Jon Quote
Jazzman Posted September 25, 2007 Author Report Posted September 25, 2007 I'll check the milage, when people say 'unplug' the MAF sensor, do you mean the wire coming off the air intake pipe or taking out the sensor completely? Quote
mumof4 Posted September 25, 2007 Report Posted September 25, 2007 there is like a socket thingy on a clip that goes to the MAF..just unplug that.No need to remove the whole MAF.But make sure that you cover the connectors so they dont get filthy.You can drive the car with it unplugged. Quote
Jazzman Posted September 25, 2007 Author Report Posted September 25, 2007 Thanks I'll try that, but does ANYON think that driving without a deisel fuel cap will affect performance at all?? Quote
seatkid Posted September 25, 2007 Report Posted September 25, 2007 No. Change the MAF sensor...... Quote
mumof4 Posted September 25, 2007 Report Posted September 25, 2007 well you can pick up fuel caps relatively cheaply these days..try a breakers yard..but i dont know if driving without one would affect performance..though i wouldnt recommend it as it is there for a purpose. Quote
Jazzman Posted September 25, 2007 Author Report Posted September 25, 2007 Hey presto!!! After disconnecting the sensor lead the car's performance has improved very significantly! Ok, question 1. Does this mean I need a new MAF sensor? 2. Can I drive around safely with this dosconnected? Thanks! Jon Quote
Smilge Posted September 25, 2007 Report Posted September 25, 2007 Hey presto!!! After disconnecting the sensor lead the car's performance has improved very significantly! Ok, question 1. Does this mean I need a new MAF sensor? 2. Can I drive around safely with this dosconnected? Thanks! Jon 1. Yes Jazzman you do need a new MAF sensor ....... stay clear of the cheap aftermarket ones. 2. Yes you can but I wouldn't as ultimately this affects the emissions / economy / performance. Quote
mumof4 Posted September 25, 2007 Report Posted September 25, 2007 Yep and yep... you can drive with it disconnected, yes it will affect mpg ..my Gal had a disconnected MAF for a few months till i was allowed to start repairing her and it was the first thing i did.She did pass an MOT with it disconnected, so effect on emissions can be debateable..depends how good your emissions were before hand i guess.As for affecting performance, once you get a new MAF on there it will be like a ferrari compared to what it is now!. Quote
seatkid Posted September 25, 2007 Report Posted September 25, 2007 You can drive around without the MAF sensor without any detriment - just lack of full performance. So if you want your car as new.......change the MAF sensor....... Approx Quote
mumof4 Posted September 25, 2007 Report Posted September 25, 2007 There are some reputable sellers on ebay, as that is where i got my replacement from..granted you must know exactly what it is you need.On the old MAF will be a part number. Quote
seatkid Posted September 25, 2007 Report Posted September 25, 2007 (edited) There are some reputable sellers on ebayBut I have difficulty seeing the wood for the trees.........I am not a gambling man Edited September 25, 2007 by seatkid Quote
mumof4 Posted September 25, 2007 Report Posted September 25, 2007 (edited) True..there are some crap ones on ebay..but word of mouth is better..i would recommend the seller i used as he was patient with my endless questions and i had next day delivery plus it was a genuine bosch one. Oi..you keep editing your post when i am replying to you.lol again..there are places where you can go and do an exchange..take your old..get a new one.But make sure it is the correct one for your vehicle as there are different ones for different model/years of galaxy etc.. Edited September 25, 2007 by mumof4 Quote
Jazzman Posted September 25, 2007 Author Report Posted September 25, 2007 Thanks all so much. I'm quite happy at the momment with the way she's running, so I'll leave the replacement MAF for now, at least. Quote
robo76 Posted September 25, 2007 Report Posted September 25, 2007 how do you tell the correct maf sensor replacement part number mines shows frm a 96/97 pbt-gf/m40 andthe replacmnt ones all sem to show 0208--------- any help? cheers Quote
Chard1966 Posted September 26, 2007 Report Posted September 26, 2007 I had a problem with a 1996 1.9 90ps lack of power ,changed the MAF,it did not fix,took the car to a diesel specialist no faults were stored in the ecu. I noticed the accelerater pedal seemed low.It was fixed by lifting the pedal and retightening the bolt, it had worked loose over the years simple fix cost nothing Quote
Smilge Posted September 27, 2007 Report Posted September 27, 2007 I had a problem with a 1996 1.9 90ps lack of power ,changed the MAF,it did not fix,took the car to a diesel specialist no faults were stored in the ecu. I noticed the accelerater pedal seemed low.It was fixed by lifting the pedal and retightening the bolt, it had worked loose over the years simple fix cost nothing That was a stroke of luck then mate? ......... not the sort of thing your average motorist would notice hey? ..... ;) Quote
Smilge Posted September 27, 2007 Report Posted September 27, 2007 how do you tell the correct maf sensor replacement part number mines shows frm a 96/97 pbt-gf/m40 andthe replacmnt ones all sem to show 0208--------- any help? cheers They've changed the part numbers ...... that was easy. Google the part number and see what it comes up with. Quote
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