Limp or not

D

dick

Member
cAN ANYONE ANSWER THESE[audi dealers advice]
will car go to limp without any indication on dash--[possibly]
will this limp mode cancell if ignition shut off then on again---[maybe]
will a code be stored in memory--[50/50]
how much to get read out---[£67 per hour or part of]
 
What's your location? Maybe someone can recommend an independent garage with Vag-Com and and lower labour rates.
 
dick said:
cAN ANYONE ANSWER THESE[audi dealers advice]
will car go to limp without any indication on dash--[possibly]
will this limp mode cancell if ignition shut off then on again---[maybe]
will a code be stored in memory--[50/50]
how much to get read out---[£67 per hour or part of]
Click to expand...

It would help if you either added more detail to your profile or tell us which model A2 you have

Cheers Spike
 
spike said:
It would help if you either added more detail to your profile or tell us which model A2 you have

Cheers Spike
Click to expand...

90tdi--26,000---old farts shopping car 90% of time
however once old fart gets on dual A 30 out of deepest cornwall he remembers days gone by and CLOGGS IT
same old F put some old diesel in--saved few pence---now replaced diesel filter for SECOND time[do you know HOW MUCH these cost--IF you can get them--neither truro nor plymouth had stock]
this time filter was BLACK almost to top
I assume this caused problem but was amazed that it could go to limp without warning
dick
 
there are some faults that mean problems and you don't get error messages. One is the cam sensor on the petrol; the error is logged but cleared as soon as you stop the engine.

limp normally means the glowplug light in a 90.

Reading any and all errors should take less than 10 minutes.

Bret
 
Low turbo boost problems due to split aftercooler cores or pipework do not appear to trigger fault codes in the early stages. On the 90 tdi with the VG turbo, sticking vanes may also give similar results

Cheers Spike
 
ohyes, check all the turbo pipes you can find first.

Sticking vanes would not surprise me due to lack of use.....

Bret
 
When i first picked up my 90 TDI it would go into limp mode and not always give any indication on the dash, always cleared by turning the ignition on and off until the next time it would happen (usually going up a hill making the turbo work a bit). After various sensor and tube changes it turned out to be sticking vanes. The turbo was sent for cleaning/reconditioning and has been as good as new ever since.

Good luck, hope you fix it soon

Craig
 
parxuk said:
When i first picked up my 90 TDI it would go into limp mode and not always give any indication on the dash, always cleared by turning the ignition on and off until the next time it would happen (usually going up a hill making the turbo work a bit). After various sensor and tube changes it turned out to be sticking vanes. The turbo was sent for cleaning/reconditioning and has been as good as new ever since.

Good luck, hope you fix it soon

Craig
Click to expand...

Craig
Thanks---this also was flat out up hill
do you know anything of history of yours--before you picked it up??--milage/use
who did you send turbo to and what did clean cost
dick
 
I thought this was a thread about impotence :)

I would also suspect either the sticking vanes, or perhaps a mild boost leak from either a split pipe or cracked intercooler. The sticking vanes is peculiar only to the 90PS turbo but is apparently relatively straightforward to fix by a decent turbo reconditioning specialist.
 
Dick

Car is a 54 with 112k on it, though mostly small journeys by all accounts.

The turbo was sent to a company called Cats and Carbs, they were amazingly quick and efficient returning the turbo in pristine condition within a day. I dont know exact costs as the garage i purchased the car from footed the bill, but is was approx £300 to clean the turbo, plus the cost of a local garage taking the turbo off, then refitting after. Once the turbo is off just phone these people up and they arrange a courier to collect.

Steve is the guy i spoke to there, and he was really switched on (i have no affiliation with this company by the way). The turbo is returned with a very good warranty as well, byt off hand cant remember the details.
 
Parxuk-ALSO any turbo GEEKS
Thanks for all suggestions so far -NEXT QUESTION
is there anything I could introduce into induction side which might free sticky blades or act as cleaning agent[redex???]
 
@Dick - unlikely. The carbon deposits on the turbo geometery vanes will be very difficult to remove, when a turbo is refurbished they will be removed and cleaned by machine.
If it is your turbo vanes (which is likely) then best to just get the job done properly and have peace of mind...
 
dick said:
Parxuk-ALSO any turbo GEEKS
Thanks for all suggestions so far -NEXT QUESTION
is there anything I could introduce into induction side which might free sticky blades or act as cleaning agent[redex???]
Click to expand...

Turbo boost pressure leaks from split hoses or the aftercooler core and sticking turbo vanes all give similar symptoms. Don't waste money on a turbo refurb unless you are sure that's the problem

Cheers Spike
 
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