Does the surging start when you go into boost, or does it happen when not in boost? If only in boost, check the ground between the air intake and front passenger side of the engine (near the throttle body). This is where the air temp sensor ground wire connects. If that wire comes loose or breaks, you get surging/bucking ANY time you apply boost. Jerry aka LGO
-----Original Message----- From: Eric McCord <[email protected]> To: List, Miata Power <[email protected]> Sent: Tue, Jun 7, 2011 2:53 am Subject: 91 Link FM2 cutting out and surging..... ok.....I finally got my 91 back out on the road. I have the WB02 installed and all seemed well on the drive into work (35 miles). No surging at idle and no cutting out while driving. When I started home after work the ECU drop outs started and the surging is back. I had the Link out earlier and checked for cold solder joints....none found. I reseated the chip and checked all the connections at the ECU. What could cause both the hunting for idle and dropping out the ECU causing the engine to die? I am thinking a ground problem, but I wanted to float this out to the collective to see if there is some other explanation. Eric _______________________________________________ iatapower mailing list [email protected] ttp://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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