mattp1983 0 Posted January 26, 2009 Report Share Posted January 26, 2009 Just converted my mk2 8v digi to a OBD1 VR6... (coilpack)Car fires up fine but runs rough, over fuels and wont idle, just cuts out unless throttle is held on until oil temp warms up...Once oil and water are at normal running temps it idles perfect...VAGCOM shows.... MAF B+ Short to ground, changed the MAF and repaired the 4-pin plug where insulation was broken on the wires, re soldered wires, heatshrinked and insulation taped each wire individually......Have a spare crank position sensor to try and a lambda if any of these would help?Also its got a dub power low temp thermostat in there......Fans run fine.. Coilpack has no notable damage, coolant temp sensor is brand new (blue one).Any ideas?????Oh yeah its got synta 10/40 oil in it as well... Link to post Share on other sites
craggsy 91 Posted January 26, 2009 Report Share Posted January 26, 2009 Was the MAF you changed to new or used. Might be worth seeing if someone can let you try a known working one Link to post Share on other sites
mattp1983 0 Posted January 26, 2009 Author Report Share Posted January 26, 2009 It was a used one, One thing I forgot to add is that I changed the alternator and still have the battery light illuminated on the dash, could the car not be recieving enough voltage? Link to post Share on other sites
craggsy 91 Posted January 26, 2009 Report Share Posted January 26, 2009 Did you connect everything exactly how it came off?Stupid questions I know but need to be asked Link to post Share on other sites
mattp1983 0 Posted January 26, 2009 Author Report Share Posted January 26, 2009 Well I connected the first one, lol..... The new one is from an OBD2 car, there are two extra 2 pin connectors on it, presumably to run auxillary functions directly, guessing air con for a start? There is the single blue wire going to a single pin connector near the gearbox, the main line going to the starter motor? Link to post Share on other sites
CorradoVR6-n.o.s 0 Posted January 26, 2009 Report Share Posted January 26, 2009 There is the single blue wire going to a single pin connector near the gearboxthat wire is the trigger for the alternator,you should find that blue wire runs to the alternator,it needs to be conected to the car loom. Link to post Share on other sites
mattp1983 0 Posted January 26, 2009 Author Report Share Posted January 26, 2009 Yup, thats connected, theres just 2 2 pin plugs that arent connected to anything.... Link to post Share on other sites
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