Hello, I'm Jason. I will do my best to answer your question quickly and accurately using the information you have provided.
Sure the code isn't a 2181?
However, that would be secondary to the fuel trim issue
you've got an intake leak, downstream of the MAF somewhere
best course of action, if possible, is to have the intake smoke tested
these have a lot of problems with the PCV systems deteriorating
i am getting a torbo to throttle vale reduction code and misfire codes
Boost deviation code......also check the diverter valve to see if it holds vacuum....
I'll post a picture of it so you know what to look for
That small nipple has vacuum running to it and should hold vacuum
very common part to fail
its a p1297 code
but I have a feeling you have other leaks
Ok, 1297.....you already replaced the sensor in the flange at the back of the head? If this code comes back, replace the thermostat, and when you have the old one out, poke your finger in the hole to see if the water pump impeller is broken at all
how do i check if it is holding vaccum
i replaced t stat already and cts
best to have a vacuum pump handy to be sure. If it's not been replaced recently, they're problematic enough, that I would just swap with a new one
didnt replace any sensor in back of head
The CTS is green and fitted into the black plastic flange at the back (driver's side) of the head
that's the one that fails, and will cause that 1297 code to come up also
still, this won't cause the lean code
smoke test is important here
yes it was already green but i replaced also
had a 1297 code prior to all this
ok, so likely dealing with at least 2 separate problems here
also the large fan was not woking and the small fan only worked on high speed.replaced both fans and now all work as they should
ok, pretty common also, at that age
does the DV need to be oem?
as long as it's Bosch, it will be fine
i used denso platinum plugs
For what it's worth, I will only use NGK PFR6Q plugs in these
you can do an aftermarket DV, but they're pricey
and not really necessary
I have billet ones in my allroad, and Bosch in my TT
do you recommend replacing the diverter valve at this time..
that's a good start, but I have a strong feeling that a smoke test is going to be necessary
i was trying to get the monitors ready for inspection and went 140 miles still 3 not readies...catalyst,evap,sec air
what scan tool are you using?
i have an autel and snapon
a VW specific tool will allow you to run all tests without driving a single foot
ok, snapon, in expert mode, you can do readiness.
which Autel? The big DS708?
not the big autel its a 805 maxdiag elite i believe
Ok, that one won't do the readiness setting, but the snapon with Euro software will
link to procedure: http://www1.snapon.com/Files/Diagnostics/UserManuals/VolkswagenAudiReadinessCodeCharts.pdf
so your saying a smoke test to check for vac leak
yep. I use mine literally every day. It's a must with these older turbo VW/Audi
any chance a buildup of carbon on intake valves cuasing leaks
well, I suppose there's a chance, but I work on hundreds of 1.8T cars and have never seen that be an issue
ok thats good..but the Dv diverter can cause it
when you look in the table of contents in that link, you won't find your engine code for the 1.8T Jetta. Use the AWP engine code. That's what you have
they only show that code for the Beetle turbo in there
DV can cause it, yes
ok i will start with that and smoke test
Let me know if I can help in the future.
thank you for all the help..
Again, I'm pretty darn familiar with these :-)