MSefi.com read only forum (Jan.15,2018)

Matt,
Replaced module a second time from a different source, and decided to also replace the capacitor since it was the only old part in the distributor. Problem solved, don't know if it was the module or the capacitor, don't really care either. It runs and I'm able to drive it, now it's time to ...

When live tuning my AFR table I'm a little confused. I'm using Megatune 2.25 and the O2 sensor is an LC1. The red X is the spot in the table being tuned, and the moving green dot is where the engine is curently in the table. Directly below the table is a line of red data that appears to indicate the ...

Hi Matt,
Replaced the HEI module already, no change in operation. I scoped the HEI input to the ecu with a Fluke 98. The signal is steady all the way though the stall, the input continue looks good as the engine coasts down to a stop. It sure does seem temp related, I'll test tonight with a hair ...

Here is a datalog of the last couple of minutes before the engine dies. I also logged 2 or 3 start attempts after it died. It looks like the IAC goes wide open as the ecu tries to maintain rpm when it dies. It restarts with a wide open IAC and the rpm climbs high then closes down and it dies. On the ...

4.1 Buick v6, Megasquirt II 2.891. Engine is basically a stock rebuild with a mild cam, 24# injectors, converted Holley single plane intake, 1999 dodge 318 two barrel throttle body on a mopar adaptor, 7 pin HEI. Engine will fire right up, idle well for about 10 minutes then shut off. It may restart ...