Just got my VCDS hooked up for the first time and have a compression tester on the way so that I might be able to get the necessary info to pin down my issue!
Hard cold starts - harder with cold ambient temps (30~deg F), but still hard when fair temperatures (50-60deg F).
Turn over for 10 seconds or more and sometimes it still doesn't start.
Installed a manual glow plug momentary switch to help cold starts and avoid the excess wear on my starter and ring gear.
Currently mid 30's F and 4-5 seconds of glow plug allows it to start right up.
Lots of diesel smoke for 5 minutes or so of idling, then mostly clears up - at least gets much thinner/less.
Sounds fairly rough - possibly like a misfire during this time - then smoothens out after 5 minutes of idling or driving a couple miles.
Bought this 01 Jetta a few months ago and been commuting daily - 35-37 MPG running it a little on the fast side - seems like this might be lower and point to something.
Fires right up after only sitting for an hour or so even in this colder weather.
Injection pump and injectors and filter were replaced with used replacements from previous owner at a "VW mechanic". They were also having smoke and hard start issues, so this replacement doesn't seem like it solved anything and they are of unknown condition to me. I do have the receipt for this work.
What should I check with my VCDS to start pinning this issue down?
Hard cold starts - harder with cold ambient temps (30~deg F), but still hard when fair temperatures (50-60deg F).
Turn over for 10 seconds or more and sometimes it still doesn't start.
Installed a manual glow plug momentary switch to help cold starts and avoid the excess wear on my starter and ring gear.
Currently mid 30's F and 4-5 seconds of glow plug allows it to start right up.
Lots of diesel smoke for 5 minutes or so of idling, then mostly clears up - at least gets much thinner/less.
Sounds fairly rough - possibly like a misfire during this time - then smoothens out after 5 minutes of idling or driving a couple miles.
Bought this 01 Jetta a few months ago and been commuting daily - 35-37 MPG running it a little on the fast side - seems like this might be lower and point to something.
Fires right up after only sitting for an hour or so even in this colder weather.
Injection pump and injectors and filter were replaced with used replacements from previous owner at a "VW mechanic". They were also having smoke and hard start issues, so this replacement doesn't seem like it solved anything and they are of unknown condition to me. I do have the receipt for this work.
What should I check with my VCDS to start pinning this issue down?