Thread: Erratic Spark with FFI
07-30-2010, 11:41 AM #1
Erratic Spark with FFI
I was working on an MSX 140 and it wouldnt start. Its seems like the spark is jumping all over the place. It would back fire and then stop cranking for a second as if the timing is too advanced and then it would run for a second and turn off. I had a genesis EMM so i plugged it in and the MSX fired right up and ran fine.
I also had the same problem with a 2 cylinder Virage I. I swapped the EMM and it ran fine.
Now Im working on a Genesis that didnt have spark or injector voltage so I put my spare Genesis EMM in it and now it is doing the same thing as the MSX and the Virage. Does this mean that I fried the EMM somehow? is there anyway to reprogram it or do all of these computers need to be sent out for repair now? The reason I ask is that the EMM I was using to test belonged to another ski and I still have to fix the MSX and VirageI
07-30-2010, 12:37 PM #2
- Join Date
- Jul 2007
- near Toronto, Canada
Erratic spark and backfiring are symptoms of a bad EMM. Check the basics around the EMM, such as the CPS and TPS. The CPS is the same on all Polaris Ficht engines.
If it was me, I would send all three EMM to DFI Technologies. If the EMM is good, then there is little cost. If the EMM needs repair, then it needs repair.
07-31-2010, 12:19 AM #3
I didnt state this but I didnt put the genesis EMM in the Virage. luckily the customer had a second Virage. I just cant believe they go bad so easily. This is all in the same week.
I winterized the MSX then I spring service it and it and the computer is bad.
07-31-2010, 01:17 PM #4
Just had 2 customers come in today. One with an 01 genesis that needed a wear ring. I pulled the pump and shaft out. tried to start it. No spark and no injector pulse. EMM is bad. and a second guy with an 03 MSX140 that said his wouldnt start so he swapped EMM's with his other MSX140 and it started.
Seems like a bad week to be a Polaris owner
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By Rogaty17 in forum Polaris How To & FAQsReplies: 8Last Post: 06-13-2008, 09:58 PM
By drwebb69 in forum Polaris How To & FAQsReplies: 0Last Post: 05-31-2008, 12:49 PM
By jewraffe in forum Polaris Open DiscussionReplies: 8Last Post: 02-08-2008, 10:46 AM
By havasufun in forum Polaris Open DiscussionReplies: 4Last Post: 05-10-2007, 06:13 PM
By VegasRatt in forum Polaris Open DiscussionReplies: 6Last Post: 09-22-2006, 12:02 AM