_Matt_ 26 Posted June 28, 2018 Hi, Just purchased a vcds (lite) cable and had a play with looking at the live values on the Corrado. I have a couple of niggles with the engine - 1/ hard to start once warmed and actually after it's been sitting in the Sun from cold in the circa 30 degree temps we have! 2/ idle fluctuates - can feel but can't see it on the tacho - log shows it jumping 20/30rpm. It also feels like it misses ever so slightly as I revved it to circa 2500rpm. I don't really notice it whilst driving but it's always been like it since owning the car. [ATTACH]93652[/ATTACH] Laptop battery went dead so file ended abruptly. I thought the blue coolant sensor might be duff to solve issue 1/ but the logged temps looked fine - what do you guys think? I'm not sure what the idle issue is. Also notice the Ignition BTDC jumps all over the place - is that normal? Lastly the engine registers as a 2.8 - I thought it was a 2.9. Guess it could have had an engine change - is vcds accurate at reading the right engine? Quote Share this post Link to post Share on other sites
Dox 22 Posted June 28, 2018 Hi, Just purchased a vcds (lite) cable and had a play with looking at the live values on the Corrado. I have a couple of niggles with the engine - 1/ hard to start once warmed and actually after it's been sitting in the Sun from cold in the circa 30 degree temps we have! 2/ idle fluctuates - can feel but can't see it on the tacho - log shows it jumping 20/30rpm. It also feels like it misses ever so slightly as I revved it to circa 2500rpm. I don't really notice it whilst driving but it's always been like it since owning the car. [ATTACH]93652[/ATTACH] Laptop battery went dead so file ended abruptly. I thought the blue coolant sensor might be duff to solve issue 1/ but the logged temps looked fine - what do you guys think? I'm not sure what the idle issue is. Also notice the Ignition BTDC jumps all over the place - is that normal? Lastly the engine registers as a 2.8 - I thought it was a 2.9. Guess it could have had an engine change - is vcds accurate at reading the right engine? Could the car have been fitted with a 2.8 AAA ecu (instead os an ABV)? I'm sure that's where it would get such info from? Quote Share this post Link to post Share on other sites
_Matt_ 26 Posted June 28, 2018 Possibly - where's the best place to check? It comes up as a 2.8 on my OBDelevan device as well. If it was a 2.8 ECU would that cause any problems - like less power etc.? Cheers, Matt Quote Share this post Link to post Share on other sites
Kaiser7 10 Posted June 28, 2018 The ECU part number 021 906 258 CP in your log is the correct ECU which is fitted to a late VR6. I've checked it against mine, a 1995 VR6 and it's the same. Quote Share this post Link to post Share on other sites
_Matt_ 26 Posted June 29, 2018 Thank you for checking. One less thing for me to fix at least! Cheers Matt Quote Share this post Link to post Share on other sites
