Seat Alhambra 1.9tdi 1999

[antony]

ok, now i'm stumped. my car runs fine, no loss of power at all but completely at random the car stalls or tries to stall.

 

if fresh from starting up it sometimes stalls

 

if running down the road, no matter what gear or speed it kinda hiccups like you just caught the stall but bump started it again.

 

i changed the maf and no difference.

[f0ster]

hello

does the car stall or does it loose power and appear to stall, how do you correct the fault, could it be going in to limp home mode, stilll runs but lack of power

[antony]

sorry for not replying sooner, helps if i subscribe to this post !!

 

its completetly random and its like it goes to stall when your doing, say, 50mph in 5th but i'm assuming because youre going so fast and in gear its like a fast bump start so its just like a jolt.

 

But this is new......... i was going to work and it lost power, really wierd.... doing 60, and i suddenly had no go. if i eased back the throttle to just under 20,000 rpm it JUST maintained speed. if i gave it just the touch above 20k rpm it rattled and slowly lost momentum. :16:

 

think i'l dig a hole and bury the ******* :o

[antony]

oh and if its just sitting idling then it stalls at random.

[tiny]

But this is new......... i was going to work and it lost power, really wierd.... doing 60, and i suddenly had no go. if i eased back the throttle to just under 20,000 rpm it JUST maintained speed. if i gave it just the touch above 20k rpm it rattled and slowly lost momentum. :o

 

 

20,000rpm? Wow, thats a high revving diesel!

 

Im inclined to think the throttle potentiometer may be at fault, but only a VAG-COM check would tell for sure.

[antony]

20,000 <_<

[sepulchrave]

But this is new......... i was going to work and it lost power, really wierd.... doing 60, and i suddenly had no go. if i eased back the throttle to just under 20,000 rpm it JUST maintained speed. if i gave it just the touch above 20k rpm it rattled and slowly lost momentum. <_<

 

 

20,000rpm? Wow, thats a high revving diesel!

 

Im inclined to think the throttle potentiometer may be at fault, but only a VAG-COM check would tell for sure.

 

Tiny, it's a diesel, exactly which throttle are you talking about?

 

If it's a fly-by-wire PD then I'm inclined to think that the fault is electronic and VAG-COM should be able to tell the story.

 

If it's old tech diesel then it has to be fuel supply interuption, possibly momentary air lock caused by air bleeding into the line from a loose connection or from having almost run out of fuel recently.

[antony]

its a mk1 115bhp 1.9tdi model. i'm inclined to think your right with air maybe gettin in somehow as its soooooo random its unreal.

I suppose i could check all fixings on the fuel line as if its letting air in, i suppose it could let small amounts of diesel out?

[tiny]

Tiny, it's a diesel, exactly which throttle are you talking about?

 

I was thinking along the lines of the potentiometer/sensor on thr throttle pedal, however came accross this old thread, perhaps its of interest?

 

CLICK ME

 

I'm not sure about the air scenario however, she would probably be a bitch to start if there was air being drawn into the system.

Electronic issues seem more likely.

Edited January 17, 2009 by tiny

[sepulchrave]

115 BHP is a PD engine isn't it?

 

If so then the fault is almost certainly electrical, chafed wiring or a dodgy connection seems most likely and the symptoms will probably get gradually worse until it cuts out and won't restart.

 

It's dangerous so get it seen to if you're stumped.

[antony]

you guys are the nuts. i've got some checking to do now.

 

as for the 115bhp, i'm sure it is 115 and its not PD. Not unless PD stands for Plonker Driving <_<

[tiny]

I was always under the impression that the Mk1 was either a 90 or a 110 none PD engine, and the Mk2 was 115 and up PD engine.

 

Anyone know for sure?

[seatkid]

Likewise.

 

If people cant be bothered to find out and post accurate details about their car (i.e. Engine code) then why should they expect accurate advice?

[big_kev]

If people cant be bothered to find out and post accurate details about their car (i.e. Engine code) then why should they expect accurate advice?

 

Now, now, Mr Grumpy calm down a bit, the guys a newbie.

 

Antony can you double check your engine type either from your docs ( or preferably the timing belt cover or engine ).

 

It should be marked somewhere AHU or ANU or AFN or AVG or AUY.

Personally my money is on AFN.

[antony]

the whiff is refusing to drive it now so i'm checking it sooner rather than later :D

[antony]

its too dark and cold at the moment but i've checked the instruction manual and yes it is only 110bhp, oh seatkid you are a god when it come to technical details, thanks for getting me off my arse to check. :D