aposegil 0 Posted April 8, 2012 hello all i need some advice. This weekend got a new maf and lambda as both old and in vagcom lambda was coming up but still having a issue. with everything pluged in the car idles very high lumpy crap and overfueling still If i unplug the ISV revs drop runs lumpy If I unplug the TPS it tries to find a level idles nicely If I unplug the maf again tries to find it idle but if I unplug the lambda it idles perfectly in all situations the car drives badly doesn't want to rev and lumpy. one thing we found the lamda casing been crushed (i think from when they did the water pump) so contacts in side where touching. Not sure if this is any good info. So what i need to know is firstly does anyone have any ideas? and does anyone have the vagcom values for all sensors at idle and thru the revs Its a 1992 vr6 with the 6 pin MAF and coilpack. thank you in advance Quote Share this post Link to post Share on other sites
floppyman 0 Posted April 8, 2012 Ok.... Is it the same problem as before? Have you erased the faults after replacing the bits? If so have you checked after running? If everything checks out fine and the only fault code you get after driving is something like lambda regulation, then I would clean the isv just to make shure and the a full ecu reset to make all the lambda values adapt.. Thats most likely your problem Quote Share this post Link to post Share on other sites
aposegil 0 Posted April 8, 2012 before changing was running crap and high idle once in a while codes have been cleared and battery was left off the car for a hour and still problems. I got a feeling that the lambda casing being crushed must have shorted something in the ecu Quote Share this post Link to post Share on other sites
floppyman 0 Posted April 8, 2012 Well when ever you disconect the battery the car will run like crap... Thats not a ecu reset. Follow rw1's wiki page for the FULL ecu reset Quote Share this post Link to post Share on other sites
floppyman 0 Posted April 8, 2012 Youre right it could have damaged the ecu... But I would try everything else until I was shure it was the ecu Quote Share this post Link to post Share on other sites
aposegil 0 Posted April 8, 2012 Well when ever you disconect the battery the car will run like crap... Thats not a ecu reset. Follow rw1's wiki page for the FULL ecu reset do you have a link as i keep find reset but not for vr Quote Share this post Link to post Share on other sites
Jim 2 Posted April 8, 2012 Hey Alex... Long time no see. Hope you are keeping well mate :) Quote Share this post Link to post Share on other sites
aposegil 0 Posted April 8, 2012 yeah long time, i still log in once in a while to read up :) it just my brother corrado playing up :( he been getting very annoyed and Ive been to busy to sort it out. So being a long weekend trying to sort it out lol how you been? Quote Share this post Link to post Share on other sites
aposegil 0 Posted April 20, 2012 well quick update did rw1 ecu reset which made it run a lot or the running issues but still had some misfire issues. me thinking it was a coilpack a mate told me to change the leads and the car now runs perfectly so thank you for all your help Quote Share this post Link to post Share on other sites
Jim 2 Posted April 20, 2012 Good result :) Leads, MAF, coilpack and an ECU reset seem to be the gateway to VR6 happiness :) Quote Share this post Link to post Share on other sites
aposegil 0 Posted April 20, 2012 you forgot lambda as well ;) yes my brother is very happy now. Loves the corrado again lol. I remember those love and hate moments with my old c lol Quote Share this post Link to post Share on other sites
