suprab Posted October 15, 2009 Share Posted October 15, 2009 Hi All, i have this problem for a while now, every now and then my car runs very rich. 10afr on my gauge and black smoke in my mirror!! i cant make it happen and it may not happen everyday, sometimes comming up to a roundabout, sometimes just cruising along at normal road speeds and sometimes it may be just ticking over. it does cut the car out but not everytime. so far i have gotten my PE650 injectors flow tested, all ok ( although the report said they were actually 740's?) changed the plugs bkr8eix changed the wideband sensor in the exhaust im now lost and confused, i dont want to keep annoying Ryan g as he is a busy man so im hoping for some input from you guys. Thanks in advance, Brian Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 16, 2009 Share Posted October 16, 2009 so far i have gotten my PE650 injectors flow tested, all ok ( although the report said they were actually 740's? Depends what pressure they tested them at. Quote Link to comment Share on other sites More sharing options...
Homer Posted October 16, 2009 Share Posted October 16, 2009 Auto or manual? Is it going rich under full boost at any point? Quote Link to comment Share on other sites More sharing options...
suprab Posted October 16, 2009 Author Share Posted October 16, 2009 thanks guys, i should have said its a manual. also another point i forgot is usually with a good rev it clears its self and could be ok again for an hour or a day... i have a short log taken from the AEM which i think shows it running rich but im not really sure what im looking at!! ill post it in a few mins, it may also help Quote Link to comment Share on other sites More sharing options...
bignum Posted October 16, 2009 Share Posted October 16, 2009 Do you have a fuel pressure gauge in the car, could be a dodgy fpr. Quote Link to comment Share on other sites More sharing options...
Alex Posted October 16, 2009 Share Posted October 16, 2009 Are you trying to map it yourself without a clue as to what you are doing? If so, I'd stop now and PAY Ryan to help you. Quote Link to comment Share on other sites More sharing options...
michel lane Posted October 16, 2009 Share Posted October 16, 2009 Are you trying to map it yourself without a clue as to what you are doing? If so, I'd stop now and PAY Ryan to help you. sounds like he is .... this is not a piggy back ECU ....you need to do alot to it to make it run right Quote Link to comment Share on other sites More sharing options...
suprab Posted October 16, 2009 Author Share Posted October 16, 2009 lol, no its already been mapped by ryan back in March. this intermittent has happend recently everything was running perfect til now, the ONLY thing iv done to the AEM was try to get a log file off it from the data log..i dont like even doing that in case i press the wrong button in there! Thanks bignum, i dont have a gauge but maybe ill get my hands on the fpr and swap that out, Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 16, 2009 Share Posted October 16, 2009 Sounds like a fuel pressure regulator problem, or a return line to the tank problem. What reg' is on it? Quote Link to comment Share on other sites More sharing options...
suprab Posted October 16, 2009 Author Share Posted October 16, 2009 Sounds like a fuel pressure regulator problem, or a return line to the tank problem. What reg' is on it? Thanks Chris, it has the standard fuel pressure reg on it. might be worth swapping it for another one Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 16, 2009 Share Posted October 16, 2009 I'd put a pressure gauge in the system and monitor fuel pressure when it plays up first. It could also be a sensor issue, for example the ecu is told the engine's at minus 4C, or similar. Can you log sensor readings on that ECU? Quote Link to comment Share on other sites More sharing options...
Guest Cody Phillips Posted October 18, 2009 Share Posted October 18, 2009 Email me your map and log and maybe there's something I can see in there......([email protected]) Thanks Cody Quote Link to comment Share on other sites More sharing options...
Wez Posted October 18, 2009 Share Posted October 18, 2009 Can you log sensor readings on that ECU? Yep indeed Quote Link to comment Share on other sites More sharing options...
suprab Posted October 19, 2009 Author Share Posted October 19, 2009 I'd put a pressure gauge in the system and monitor fuel pressure when it plays up first. It could also be a sensor issue, for example the ecu is told the engine's at minus 4C, or similar. Can you log sensor readings on that ECU? i belive you can but i dont like going in there with little experience incase i break Ryan's map!! but i know what you mean, something like the coolant temp sensor Email me your map and log and maybe there's something I can see in there......([email protected]) Thanks Cody Thanks Cody, i might take you up on that! ill see if i find the log where it ran bad for a few seconds Quote Link to comment Share on other sites More sharing options...
Guest Cody Phillips Posted October 19, 2009 Share Posted October 19, 2009 Sounds good....... /vbb/images/smilies/bbcode_grin.gif Quote Link to comment Share on other sites More sharing options...
Guest Cody Phillips Posted October 20, 2009 Share Posted October 20, 2009 From the initial looks of your logs........it looks like the map sensor is either wired wrong or not reading correctly...........send me your map! Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 20, 2009 Share Posted October 20, 2009 Come on, the man's gagging to help you, take advantage of the kind offer -Ian Quote Link to comment Share on other sites More sharing options...
suprab Posted October 20, 2009 Author Share Posted October 20, 2009 From the initial looks of your logs........it looks like the map sensor is either wired wrong or not reading correctly...........send me your map! Thanks again for your help so far, map sent Come on, the man's gagging to help you, take advantage of the kind offer -Ian done Ian, map sent Quote Link to comment Share on other sites More sharing options...
suprab Posted October 26, 2009 Author Share Posted October 26, 2009 Just an update in case anyone else has a similar problem, i cleaned the idle air control at the rear end of the intake with carb cleaner. so far things are looking good and i have gone through a full tank of petrol with all kinds of different driving, traffic etc and it seams to have fixed it Quote Link to comment Share on other sites More sharing options...
bondango Posted October 26, 2009 Share Posted October 26, 2009 Quote Link to comment Share on other sites More sharing options...
suprab Posted October 26, 2009 Author Share Posted October 26, 2009 fingers crossed, if its still ok this week ill be in touch for cams thanks again Marty Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.