Engine performance 1Z audi 80 cabriolet - Page 2

fritzvis · 27-03-18, 05:10 AM

Is boost something you can check with ODB2? I have connector and adapter for ODB2...

msh · 27-03-18, 09:55 AM

Yes, but depends on software. I've no experience with something else than definite diagnostic tool for VAG cars - VCDS - VCDS can draw nice graphs of various parameters, useful for such check.

rangerovering · 27-03-18, 11:07 AM

Low pressure fuel pump worn out?

M4rkp · 27-03-18, 11:52 AM

If you can get hold of anybody with VCDS it would help - at least you could see where the problem is. My B4 went sluggish - checked the pump timing and found out it was out, so slackened the 3 bolts off and tweeked it a couple of degrees and hey presto - back to normal...eventually a worn pump will need replacing, but it gets you out of immediate trouble.

Its a while since I had my B4, but having a full version of VCDS certainly helped keeping it going!

Have a look at the Ross-Tech link below - it will give you an idea of what to look for.

http://www.ross-tech.com/vag-com/cars/tdi.html

msh · 27-03-18, 03:13 PM

...or simply buy in ebay some cheap chinese ross tech cable clone for 15-20 quid. Or, if you want to support them, and are not scared about limitations the fact that licence of VCDS-Lite is tied to one PC, buy VCDS Lite licence AND ordinary OBD2 cable which is based on FTDI chip.

fritzvis · 27-03-18, 05:26 PM

Just removed EGR and it looks pretty clean... not clogged up... there is deposit but as expected... will clean anyway tomorrow. Next step is turbo boost...

sporttrucker · 27-03-18, 08:54 PM

make sure all the small vac hoses are good, I had a split one on a tdi and it made it very sluggish

27-03-18, 11:52 AM	#14
M4rkp Grown up member Classic Audi Club Member Join Date: Feb 2013 Location: Sometimes Roberttown - sometimes Surrey Posts: 194	If you can get hold of anybody with VCDS it would help - at least you could see where the problem is. My B4 went sluggish - checked the pump timing and found out it was out, so slackened the 3 bolts off and tweeked it a couple of degrees and hey presto - back to normal...eventually a worn pump will need replacing, but it gets you out of immediate trouble. Its a while since I had my B4, but having a full version of VCDS certainly helped keeping it going! Have a look at the Ross-Tech link below - it will give you an idea of what to look for. http://www.ross-tech.com/vag-com/cars/tdi.html Last edited by M4rkp; 27-03-18 at 11:58 AM.

27-03-18, 05:10 AM	#11
fritzvis Grown up member Join Date: Nov 2017 Location: Belgium Posts: 44	Is boost something you can check with ODB2? I have connector and adapter for ODB2...

27-03-18, 09:55 AM	#12
msh 4 ring whore! Join Date: Jun 2008 Location: Rucava, Latvija Posts: 3,816	Yes, but depends on software. I've no experience with something else than definite diagnostic tool for VAG cars - VCDS - VCDS can draw nice graphs of various parameters, useful for such check.

27-03-18, 11:07 AM	#13
rangerovering Grown up member Join Date: Aug 2016 Location: Kinross Posts: 174	Low pressure fuel pump worn out?

27-03-18, 03:13 PM	#15
msh 4 ring whore! Join Date: Jun 2008 Location: Rucava, Latvija Posts: 3,816	...or simply buy in ebay some cheap chinese ross tech cable clone for 15-20 quid. Or, if you want to support them, and are not scared about limitations the fact that licence of VCDS-Lite is tied to one PC, buy VCDS Lite licence AND ordinary OBD2 cable which is based on FTDI chip.

27-03-18, 05:26 PM	#16
fritzvis Grown up member Join Date: Nov 2017 Location: Belgium Posts: 44	Just removed EGR and it looks pretty clean... not clogged up... there is deposit but as expected... will clean anyway tomorrow. Next step is turbo boost...

27-03-18, 08:54 PM	#17
sporttrucker Grown up member Join Date: Jan 2014 Posts: 55	make sure all the small vac hoses are good, I had a split one on a tdi and it made it very sluggish