hodge Posted May 2, 2006 Share Posted May 2, 2006 Was driving home from work tonight was doing about 20mph and my car has died. All of a suddern it lost all power, the revs dropped right down and cut out. When I started it again it cut out straight away. eventually when I got it going the revs were hunting, dropping really low to around 300rpm. I tried to put my foot down when I got it moving but at 1 point I had my foot flat on the floor and it went nowhere just spluttered with a bit of a backfire. I thought it may be some crap petrol as I didnt go to my usual garage when I filled up so I filled the tank up again and put some injector treatment in incase I had some grit in my petrol maybe a sticky injector but it aint working. Its still really lumpy and I cant go anywhere in it cos it just keeps dying. Whats wrong, it was perfect thisd morning. Please help Link to comment Share on other sites More sharing options...
Guru Posted May 2, 2006 Share Posted May 2, 2006 Fault codes, lights, smoke....etc? Link to comment Share on other sites More sharing options...
Supra ST Myster Posted May 2, 2006 Share Posted May 2, 2006 checked your plug connections under the cam cover? Link to comment Share on other sites More sharing options...
hodge Posted May 2, 2006 Author Share Posted May 2, 2006 Theres no lights on even the main fault lighthas not come on. If i rev it im getting some black smoke but i wasnt sure if that has anything to do with the injector treatment I have just put in. Ive read a few threads and some of them point to plugs and leads could a bust plug or lead cause all this heart ache. Link to comment Share on other sites More sharing options...
Daston Posted May 2, 2006 Share Posted May 2, 2006 I used to get this with my MR2 when it rained hard turned out to be a dodgy plug and also crap electrics check the leads and plugs Link to comment Share on other sites More sharing options...
hodge Posted May 2, 2006 Author Share Posted May 2, 2006 The cars always ran great until now. It happened really suddenly. Spluttering, holding back, cutting out and some black smoke all down to a bust plug. Ive had the car almost a year and a half and only done about 5000 mile. But the plugs havent been changed since ive owned it. Anyone else think its the plugs. Dont wona splash out for plugs if its just a guess. Link to comment Share on other sites More sharing options...
carl0s Posted May 2, 2006 Share Posted May 2, 2006 take the plugs out and have a look! Link to comment Share on other sites More sharing options...
Ian C Posted May 2, 2006 Share Posted May 2, 2006 Check the hose to your MAP sensor, make sure it hasn't popped off. -Ian Link to comment Share on other sites More sharing options...
hodge Posted May 2, 2006 Author Share Posted May 2, 2006 Where abouts is that av you got a pic. Link to comment Share on other sites More sharing options...
hodge Posted May 2, 2006 Author Share Posted May 2, 2006 anyone. im really stuck here Link to comment Share on other sites More sharing options...
Supra ST Myster Posted May 3, 2006 Share Posted May 3, 2006 i ment the actual connectors under the cam cover.. the ones that can go brittle and break off when the spark plugs were changed and can then become loose causing problems, you do have a TT right?? were abouts are you? Link to comment Share on other sites More sharing options...
tbourner Posted May 3, 2006 Share Posted May 3, 2006 I'm thinking MAP signal - sounds EXACTLY like when I didn't wire up my FCD correctly!!! Do you have an FCD by any chance? Who soldered it in? Otherwise as Ian says check the pipe to the sensor (I think OTTOMH it's on the nearside of the engine, coming off the 'block' side of the inlet plenum, I remember undoing the 2 bolts and 'swivelling' it to put the hose on for my boost guage - or am I wrong?). Link to comment Share on other sites More sharing options...
markssupra Posted May 3, 2006 Share Posted May 3, 2006 Mines doing the same, but only once its hot. But not starting very well, takes a while for it to fire. Started off this morning and it was pulling ok until I got near work and slowed down at a roundabout then the bloody thing wouldnt go, just as you described it. Lack of power, foot on the floor and a small backfire. I can hear the turbo spooling but nothing happens until the revs manage to get upto about 2500, then its off again. Ive changed the plugs, fuel filter, no difference. It used to do it more when i used optimax but not with tesco 99, now its doing with tesco 99 as well. I'm seriously thinking about taking it somewhere and getting it checked out. Had a bloody scooby behind me as well when it wouldnt go. Link to comment Share on other sites More sharing options...
Guest chiefvinso Posted May 3, 2006 Share Posted May 3, 2006 I'm thinking MAP signal - sounds EXACTLY like when I didn't wire up my FCD correctly!!! Do you have an FCD by any chance? Who soldered it in? Otherwise as Ian says check the pipe to the sensor (I think OTTOMH it's on the nearside of the engine, coming off the 'block' side of the inlet plenum, I remember undoing the 2 bolts and 'swivelling' it to put the hose on for my boost guage - or am I wrong?). If you have a THOR FCD then this could be right as I wired mine up wrong and had the same problems just not as severe. Runs perfect now. Link to comment Share on other sites More sharing options...
Ian C Posted May 3, 2006 Share Posted May 3, 2006 MAP sensor can be found in this piccy: http://www.mkivsupra.net/vbb/attachment.php?attachmentid=13939&d=1112558977 There is a hose going to it's underside. If it comes off it'll only ever measure, and therefore fuel for, atmospheric pressure. This means overfuelling at idle and off-boost, and underfuelling on-boost (which can cause engine death ) It sounds like you've got severe overfuelling so I'd start there. If you've wired up something incorrectly to the MAP wire as well you can cause this overfuelling problem too. -Ian Link to comment Share on other sites More sharing options...
GazzaGSi Posted May 3, 2006 Share Posted May 3, 2006 Umm, Sounds like the exact problem I had with my N/A acouple of months back. Except i had warning lights on my dash illuminate. My problem was solved with a new ecu. Obviously Im not saying its your ecu that is the problem as mine was intermintant. I could drive it fine and it would cut out. restart it and I would have black smoke, lumpy idle, cut outs all the time along with no power. I could come back to the car 5 minutes later and it would start fine and run fine until the problem decided to arise again. Good luck in sorting it, hope its nothing too serious. Link to comment Share on other sites More sharing options...
hodge Posted May 3, 2006 Author Share Posted May 3, 2006 Come to think of it, I also fitted my FCD incorrectly and this happened but this time ive got black sooty stuff from my exhaust when I rev it. I thought it could be the FCD so I disconected it with no difference. I tried to start it this morning it fired up but wouldnt tick over spluttery and lumpy and it stunk of what I think is petrol. Link to comment Share on other sites More sharing options...
hodge Posted May 3, 2006 Author Share Posted May 3, 2006 Ive just took my plugs out and they were all black but and abit oily but the 1 nearest the bulkhead was covered in oil. also when I uncliped the connestors fron the top of the coil packs 1 of them fell to bits. Any ideas and alos where can I get 1 of those connectors from Link to comment Share on other sites More sharing options...
tDR Posted May 3, 2006 Share Posted May 3, 2006 Check all vac / boost hoses including connections either side of IC - make sure you can't see any obviously popped off first, failing that carefully check for splits. Cheers, Brian. Link to comment Share on other sites More sharing options...
hodge Posted May 3, 2006 Author Share Posted May 3, 2006 Is there anyone around Newcastle/Co.Durham that would fancy coming over and having a look for me im totally lost. Possably Map sensor, plugs, plug connectors, coil packs who knows Link to comment Share on other sites More sharing options...
hodge Posted May 4, 2006 Author Share Posted May 4, 2006 Anyone? Link to comment Share on other sites More sharing options...
andrew7 Posted May 4, 2006 Share Posted May 4, 2006 Ive just took my plugs out and they were all black but and abit oily but the 1 nearest the bulkhead was covered in oil. also when I uncliped the connestors fron the top of the coil packs 1 of them fell to bits. Any ideas and alos where can I get 1 of those connectors from Toyota sell them... Link to comment Share on other sites More sharing options...
andrew7 Posted May 4, 2006 Share Posted May 4, 2006 Change your plugs boss...... Link to comment Share on other sites More sharing options...
tbourner Posted May 4, 2006 Share Posted May 4, 2006 Get that connector fixed (it wasn't the same pot as the one that had the oily plug was it?), change the plugs for some cheap NGKs. You might want to clean your O2 sensor now as well - just stick it in a lemon overnight. Were any of the plugs loose? Link to comment Share on other sites More sharing options...
Ian C Posted May 4, 2006 Share Posted May 4, 2006 Still sounds like overfuelling to me. Check here for sorting out your coil pack connectors, including the part number for the connector itself. Check here for how to read what your narrowband O2 sensor is reporting to the ECU. You can use a multimeter to see if you are running rich then. Your plugs being covered in oil may be a red herring in this, but it's still a good idea to get the cam cover gaskets replaced - they aren't overly expensive and it's an easy enough job. If you want to go mad with your multimeter you can check the airflow signal voltage going to the ECU - that would be my next diagnostic step. If you are up for that say so and we can go through how to do it -Ian Link to comment Share on other sites More sharing options...
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