JayAtters Posted October 14, 2019 Share Posted October 14, 2019 I am a new member to the club and to the Subaru's. I bought a impreza wrx year 2001 blobeye that had the engine light on and was told it because its been decatted. It running really lumpy like limp mode. I run my ecu reading on it came up with codes about air mass and missfiring in 3 cylinders. I reset the light and to my amazement it run like a treat no stuttering then after 3mins I felt it stuttering again then engine light came on again. Would anyone happen to know what's causing this can't be spark plugs or coilpack surely as wouldn't of had that few minutes of perfect driving. Going to chang Maf this weekend. Quote Link to comment Share on other sites More sharing options...
Jay762 Posted October 14, 2019 Share Posted October 14, 2019 Wotcha and welcome - not able to help in this instance but I am sure someone will be along in a bit to advise Quote Link to comment Share on other sites More sharing options...
JayAtters Posted October 14, 2019 Author Share Posted October 14, 2019 5 hours ago, Jay762 said: Wotcha and welcome - not able to help in this instance but I am sure someone will be along in a bit to advise Thank you I am looking forwards to getting this fixed. I had that few moments of driving perfect and it was so much fun. Planning on changing maf sensor and neutral switch on gearbox and hoping it works. Would anyone happen to know any decent mechanics that specialise in Subaru's in the Crawley area or nearby just incase I can't fix it. Quote Link to comment Share on other sites More sharing options...
Jay762 Posted October 15, 2019 Share Posted October 15, 2019 The Crawley area has been requested before so somewhere on the site there are a couple of places quoted. It could also be the cam sensor throwing everything out Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted October 16, 2019 Share Posted October 16, 2019 Could try cleaning the maf with brake cleaner, let it dry ,re fit clear codes and see if that helps first . Quote Link to comment Share on other sites More sharing options...
JayAtters Posted October 16, 2019 Author Share Posted October 16, 2019 1 hour ago, savage bulldogs said: Could try cleaning the maf with brake cleaner, let it dry ,re fit clear codes and see if that helps first . I bought a new maf and a new neutral switch if none of them work then I will try the cam sensor just want to try the simple stuff before being bent over by mechanic. Being doing this weekend will keep you updated. Quote Link to comment Share on other sites More sharing options...
Tidgy Posted October 16, 2019 Share Posted October 16, 2019 hate to say it but never buy a car with a check engine light on, especially a performance car. Just because they says its because of decat it might well be something alot more serious. As said you need to get it to a specialist to find out whats going on. Quote Link to comment Share on other sites More sharing options...
JayAtters Posted October 16, 2019 Author Share Posted October 16, 2019 6 hours ago, Tidgy said: hate to say it but never buy a car with a check engine light on, especially a performance car. Just because they says its because of decat it might well be something alot more serious. As said you need to get it to a specialist to find out whats going on. Very true but I enjoy saving cars and if it ends up being something simple could get a right result. Plus I had it driving perfectly for a bit when I reset the codes so can't be anything internally. Quote Link to comment Share on other sites More sharing options...
Tidgy Posted October 16, 2019 Share Posted October 16, 2019 3 hours ago, JayAtters said: Very true but I enjoy saving cars and if it ends up being something simple could get a right result. Plus I had it driving perfectly for a bit when I reset the codes so can't be anything internally. yeh alwasy a punt, if it is sensor related then happy days, fingers crossed. Quote Link to comment Share on other sites More sharing options...
Stanspeedautocare Posted October 18, 2019 Share Posted October 18, 2019 2001 blobeye ? Quote Link to comment Share on other sites More sharing options...
JayAtters Posted October 18, 2019 Author Share Posted October 18, 2019 2 hours ago, Stanspeedautocare said: 2001 blobeye ? Yes mate Quote Link to comment Share on other sites More sharing options...
Alex Finlayson Posted October 18, 2019 Share Posted October 18, 2019 Hi , Go through the basics , check all codes , fuel pressure , air / fuel mix sensor ( O2 sensor in the manifold or CAT ) , be very careful cleaning your MAF .. do it as a last resort !! , Any oil on the spark plug leads where they enter the valve covers ? if so it's an easy fix definitely DIY. new seals cost pennies. check your valve clearances while your at it. Don't panic the car sounds ok and don't jump about with crazy theories. Remember ....Air , Fuel , Spark , Bang it has'nt changed in a 100 plus years. 1 Quote Link to comment Share on other sites More sharing options...
JayAtters Posted October 18, 2019 Author Share Posted October 18, 2019 3 minutes ago, Alex Finlayson said: Hi , Go through the basics , check all codes , fuel pressure , air / fuel mix sensor ( O2 sensor in the manifold or CAT ) , be very careful cleaning your MAF .. do it as a last resort !! , Any oil on the spark plug leads where they enter the valve covers ? if so it's an easy fix definitely DIY. new seals cost pennies. check your valve clearances while your at it. Don't panic the car sounds ok and don't jump about with crazy theories. Remember ....Air , Fuel , Spark , Bang it has'nt changed in a 100 plus years. Thanks for your advice I appreciate it. Yes when clearing the codes and driving after the car was running smoothly. Even when running lumpy it idles fine. Going to be a busy dirty weekend hope the weather holds off. Quote Link to comment Share on other sites More sharing options...
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