MS3 +FM turbo r unning perfectly now won't start
2 Attachment(s)
I've been running my MS3+FM combo for the last few months without many hiccups. Today, I used the car to grab groceries and returned it back to its parking spot fine. A few hours later, I go to start the car, it catches like normal then suddenly dies. When it cranks, it just cranks.. No catching whatsoever. I played with the cranking pulse to no avail -- it's been working on the current map at the same temperatures for a while now, so that shouldn't be the problem. I recorded a log for the pros on this board to look over. It looks like its getting fuel, not sure why it won't start... Any clues? Thanks in advanced.. I need to move the car ASAP.
I'm using FAB9 COPs. I haven't done a spark check yet, but the COPs are basically brand new.. |
If it worked and stopped working its probably not the tune. We need a composite cranking log.
Also what year car. What year motor. What trigger setup. |
Originally Posted by aidandj
(Post 1333392)
If it worked and stopped working its probably not the tune. We need a composite cranking log.
Also what year car. What year motor. What trigger setup. |
My car recently ran semi decent, last week bish won't start. I tested coils to be bad. You're running cops though...I'd check for spark.
|
Also check the fuel pump. Just hearing the relay click isn't enough. Typical symptom is car starting then stalling a couple of seconds later (many seconds later on returnless), out of the blue.
|
Pulled the spark plugs and cranked the car. They were super dirty cause I've been running pretty rich (Iridium IK-22). Cleaned them off and watched them spark. Plugged them back in and couldn't get the motor to turn. So I recorded video of both the dirty sparks and brand new plugs. The spark patterns were coming off differently so I decided to replace the whole set. Once I got the new plugs in, the car runs 100x smoother than it was before. I guess I was misinterpreting the cars stumbly idle as a poor tune as opposed to gunked plugs.
I've gotten maybe 5k out of each set of 4 IK22s. The car warms up around 11-12 AFR then idles around 14.3-5. I've since changed the warmup to be closer to 13 on cold and 14.7-.9 on cruise. Hope this extends the length of these plugs. I've got video of the two spark patterns if that would help people... Let me know! Thanks for the response again! |
This happens to more people (including myself) than it should. We make assumptions that problems are MS related, when it was something mechanically the whole time.
|
All times are GMT -4. The time now is 03:27 PM. |
© 2024 MH Sub I, LLC dba Internet Brands