|
| | | 
Forum Tea Boy
 
Group: Forum Members
Last Login: 27/07/2010 14:40:45
Posts: 98, Visits: 1,778 |
| | hi can anyone shed any light on this one we have a 306 its had the head gasket replaced and is now overfuelling big style the injectors appear to be wide open i.e full throttle delivery ,fuel pressure,, ok map sensor ok but changed ,valve timing correct, no bust keys or jumped ,,belt have had head off again , no problem , changed ecu ,changed injectors for s/h set ,changed throttle body ,coolant sensor,, air temp sensor, fuel regulator and rail ,no blockage in return to tank,no codes in ecu ,engine earth ok wiring ok to sensors and ecu ,tps changed ,only thing that appears amiss is engine vacuum 1200 mb but no reason for it ,as i say valve timing is spot on even tried it a tooth either side of correct with no improvement, if you knock off the inertia swith the engine runs ok till the fuel runs out in the rail, a mate of mine reckons he,s had the same fault and cured it with a set of injectors ,the ones i fitted where sec hand ,and I wonder if they stick if left out of service for a while any ideas ? cheers swe |
| |
| | | 
Forum Technician
Group: Advanced Members
Last Login: Today @ 02:46:25
Posts: 801, Visits: 4,012 |
| | only thought that i have would be to scope the injectors and see whats happening wondering if the earth side has gone to ground holding them open at full chat could possibly test with a dmm with the ecu disconnected and see if you still have continuity on earth side, or you could get the injectors tested, Regards TB |
| |
| | | Forum Master Technician
Group: Moderators
Last Login: Today @ 08:21:16
Posts: 6,881, Visits: 14,275 |
| | SWE No Year, or engine code ?? or did i miss them  MAP sensor replaced, is it mounted on the O/S strut top if so the answer is stored in the Forum. Kev.
"If you dont KNOW how it works, don,t try to test or fix it" |
| |
| | | Forum Master Technician
Group: Advanced Members
Last Login: Today @ 08:45:29
Posts: 6,262, Visits: 12,397 |
| | swe Pending engine info; have you misplugged the MAP's plug on to the injector loom?
. |
| |
| | |
Forum Tea Boy
Group: Forum Members
Last Login: 27/07/2010 14:40:45
Posts: 98, Visits: 1,778 |
| | thank for the replies guys, injector wiring checks ok ,map sensor is directly into manifold and correctly wired ,have tried 2 others with no difference, 1998 year , will check engine code tomorrow ,I think its hfx but its been a long day cheers |
| |
|
|