Irratic boost

Cupra-jb

lcr 269 bhp L60 0NR !
Jun 28, 2008
104
0
Huddersfield
Iv been havin this problem for around 3 weeks now,

Basicaly some times the car boosts fine then others its in limp mode (i think).
Example,yesterday i went on a 60 mile trip with my mate and it was fine for around 40 miles then nothing,then today got in and nothing again,and just now went out again and it boosted for around 5 mins then dropped off again?

iv run my scanner and got the codes,1.17705,p1297 connection charger to thrrotlevalve/pressure dropped.

2.17535,p1127 bank 1 mixture adaptation (mult)system too rich
i clear them and they come straight back.

iv checked and replaced any damaged hoses,cleaned the tb upand have just tried my mates n75 of his ibiza cupra on my lcr which worked for around 2 miles then went back to limp.


any help would be grat lads as im running out of ideas and paitence:help:

thanks.
 

LEE69

Stage 2 Revo'd
Dec 10, 2004
21,262
74
C\UK\Devon\Torquay
My car is temperamental as hell, since fitting the turbosmart, I'm going back to my GFB.
Might be wortth trying a standard dumpvalve.
 

Cupra-jb

lcr 269 bhp L60 0NR !
Jun 28, 2008
104
0
Huddersfield
Just been out in the car for around 2 hrs with 3 stops inbertween and it boosted fine up untill around the last 15 mins,which is v.strange:shrug:

im goin to put her on a ramp tommorow and check all the bits underneath is there anything in peticular i should be checking?

thanks,
 

ceedubya

crazy legs
Mar 18, 2004
130
0
newcastle upon tyne
no i havent mate were abouts is that?

and what does it look like?

thanks.

follow the pipe from the throttle body to tip and you should see it, looks a bit like a small flying saucer is the best description i can think off:lol:

mine had a similar problem and brought the same fault codes up, turned out the 1 way valve had failed and wouldnt let any air thru either way
 

Cupra-jb

lcr 269 bhp L60 0NR !
Jun 28, 2008
104
0
Huddersfield
no its nothing to do with the air-con mate.


is it the small half black and white one?

or is it the all black one that looks like a pancake whith 3 pipes goin to it?

cheers.:confused:
 

Cupra-jb

lcr 269 bhp L60 0NR !
Jun 28, 2008
104
0
Huddersfield
anyone???


also noticed a strange smell from the passenger footwell today not burning but like something getting really warm:confused:
 

Cupra-jb

lcr 269 bhp L60 0NR !
Jun 28, 2008
104
0
Huddersfield
Quick update,i took the car to my local vag specialist on thursday and he couldnt find any leaks and he re conected the n249 bypass and cleared the fault codes and it was fine untill today when its started to do it all again.

is there anything else that could be causing this code besides a air leak?

please help.

cheers.