changed the engine in my subaru inpreza sti 95 reg do 2 piston ring o number 4 and a miss fire put new engine in still got the miss fire sorry about the spelling regards ozz
Hi, I’m a moderator for this topic and I wonder whether you’re still waiting for an answer. If you are, please let me know and I will do my best to find a Professional to assist you right away. If not, feel free to let me know and I will cancel this question for you. Thank you!
yes i am regards ozz
Hello and Welcome to justanswer...Im sorry to see you have had a wait on your question...I will help you - but I need to ask first... Im not really sure exactly from your description, just which cylinders you have a misfire on - Can you please clarify that for me - exactly which cylinders that are misfiring?Too - have you had any diagnostic tests done at all?Please type your reply here- When I receive it, I will get back to you asap ..after - Kind Rgds- MIKE.................................
hi when i brought the car the engine had miss fire and the piston rings had gone on number 4 so i replaced the engine the new one had done 62.000 mile and just been rebuildt we put the engine in started first time but had the same missfire cheers ozz
Hi there...Thank you for your reply & further info, that helps greatly..In that case, its a coincidence that you have a misfire at all - and on the same cylinder.... in that I very much doubt you have failed piston rings on your replacement engine...But the engine ignition / fueling / management system could have been the cause of the demise - so this needs investigating now - The first thing to check is if you have a spark on that cylinder - spark plug.. So check for that .. If you dont - you have suspect ignition coil there...or wiring to it . ( you could have a fault with the ecu - but you need to check that first - inc spark plug of course )If you do have a spark - then the chances are you have a failed / faulty fuel injector on that cylinder... you can check for power to that injector - or you can swap it for another if you have one. If not - swap the injector from that cylinder to another - say no. 1...and see if you now have a misfire on no.1.. If you do, you know the injector is the fault. If you still have a misfire on no.4... you then need to check the mechanics of the engine- checking for any inlet system air leak and so on - and you would be best to do a compression test too...just in case.. you have to do it to rule it out if nothing else...But work though as above to trace the cause of your fault down. You could have wiring / connection faults too in the engine wiring loom to the coil and injectors etc - so bear that in mind / check these things too... Working through as above, you will trace this down...Kind Rgds- MIKE.NB : ~~~~~ Please remember to only rate my answer when you are 100% satisfied. IF you feel the need to click either "Helped a little" or "I expected more" (both of these rate me / my help negatively and not the site or the solution , only my help ).. Please stop and reply to me via the REPLY or CONTINUE CONVERSATION button with the issue you have. I will be more than happy to continue further and do everything I can to provide you with the service you seek.Thank you to in anticipation of your clicking the Accept / smiley for me now at this point - ... Best Rgds - MIKE..