Aidan Posted April 12, 2020 Share Posted April 12, 2020 So I just replaced my fuel injectors with some Bosch 4 port ones (mine still had all the stock one port ones) and I started it up and it immediately stalled out. I got it running and it ran like s*** for about 10 minutes then seemed to fix itself. I took it for a ride right down the street and it stalled out twice, both times at a stop sign. Did I mess something up or will it eventually fix itself? Sent from my moto e5 play using Tapatalk Link to comment Share on other sites More sharing options...
Aidan Posted April 12, 2020 Author Share Posted April 12, 2020 I read something on an XJ forum that says if you reset the ECU it will be in "learning mode" for the next 50 warm up cycles, does that mean it will eventually correct itself or do I get to start diagnosing? Sent from my moto e5 play using Tapatalk Link to comment Share on other sites More sharing options...
JMO413 Posted April 12, 2020 Share Posted April 12, 2020 What years are you working on? This will help everyone help you. Link to comment Share on other sites More sharing options...
barimpact Posted April 12, 2020 Share Posted April 12, 2020 If you haven't disconnected your battery to reset your ECU yet, it's free and worth a try. I didn't have any issues when I changed the injectors on my '00 XJ or my '91 MJ. However, on the XJ I had the battery unplugged for a week doing the head gasket, and the MJ had it unplugged for 3 months while I swapped in a new engine and transmission! Make sure there's no leaks at the injectors while it's running, and make sure all the plugs are the correct way and firmly plugged into the injectors. Sounds simple, but I know I'm guilty of overlooking the easy solutions sometimes. Link to comment Share on other sites More sharing options...
Aidan Posted April 13, 2020 Author Share Posted April 13, 2020 Thank you for the replies! I checked all the injectors and was about to pull them back out and swap them but it turns out i busted the line on my MAP sensor and as soon as i replaced it i had zero issues. Link to comment Share on other sites More sharing options...
JMO413 Posted April 13, 2020 Share Posted April 13, 2020 Good to hear you got it fixed. Link to comment Share on other sites More sharing options...
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