240ZinTN Posted February 19, 2005 Share Posted February 19, 2005 I finally got my Z31 ECU to power up!!!! I danced a jig and the got back to work and then frustration set in again. I am getting error codes from the ECU now and it looks like my CAS isn't working right. I checked the CAS connections to the ECU and they check out ok. I also made sure I had the CAS wheel installed correctly. All I get when I try to start the car is a few sputters while cranking it and a little exhaust smoke so I know I am getting fuel and spark in there. Does anyone know of a way to test the signals comming from the CAS? Is it possible that the pick-up thingy that reads the wheel is bad? If so has anyone swapped the pick-up from an 83 Dizzy with a Z31 Dizzy pick-up? Quote Link to comment Share on other sites More sharing options...
yo2001 Posted February 20, 2005 Share Posted February 20, 2005 With the key on "ON" position, you can hear the CAS triggering when you turn the dizzy around. Quote Link to comment Share on other sites More sharing options...
240ZinTN Posted February 20, 2005 Author Share Posted February 20, 2005 yo2001, Thanks for the help but I am not sure I understood what you meant by turn the dizzy. Do you mean rotate like when adjusting timing or rotate the engine to spin the dizzy? Quote Link to comment Share on other sites More sharing options...
yo2001 Posted February 20, 2005 Share Posted February 20, 2005 I usally pull the dizzy out and rotate the shaft with the key on "ON" position. Better? lol Quote Link to comment Share on other sites More sharing options...
240ZinTN Posted February 21, 2005 Author Share Posted February 21, 2005 Yes and thanks. It helped a lot and My CAS seems to be working ok. I could hear it clicking and it made my injectors fire and fuel pressure dropped with each fire. Now I am sure my injectors are working too. While I had the Dizzy out I double checked TDC at #1 and found out I had my dizzy connections shifted over by one spot. I moved them all by one clockwise and was able to get it started. I had to feather the throttle and could barely keep it going but thats still progress. I build some oil pressure and was able to find a leak in oil supply line too. I can't seem to keep the motor going or build any rpm. It just kind of sputters and chugs. I am still getting an error code for the CAS and one for Air flow sensor intermittently. So once again... back to triple checking all my connections and praying that when I set up the timing chain I wasn't a little off there too. Thanks again yo2001. Quote Link to comment Share on other sites More sharing options...
yo2001 Posted February 21, 2005 Share Posted February 21, 2005 try disconnecting the MAF and see if you can get it to crank and idle on the safe mode. I had the same problem and it turned out to be a bad MAF. swap the MAF and it ran like how it suppose to. Quote Link to comment Share on other sites More sharing options...
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