My 1996 Liberty / Legacy 2.2 L has a problem starting once the engine has warmed. The problem was first noticed about 3 years ago. At that time it only occurred about once every 2 to 3 months. As time passed the rate of occurrence gradually increased. It is now likely to happen more than once a week.
The symptoms of the problem are as follows:
" The car always starts from cold.
" There is no indication of a problem when driving (except for occasional stall when idling).
" Occasionally the car fails to start once the engine is warm. The engine cranks normally but there is no sign of firing.
" Once it has entered this failed state there is no spark at the plugs.
" Once it is in this failed state it consistently fails to start for up to 20 minutes.
" Once it has eventually successfully started, it may then be stopped and started immediately and consistently until the next episode which may be one hour or up to several days away.
" If there is a stall from idling, then it often enters the failed state (where it will not start for up to 20 minutes)
" The ECU does not indicate any diagnostic codes after download.
" There is never any warning lights on the dash.
To date I have done the following:
Replaced both crankshaft and camshaft position sensors. Replaced igniter with a Diamond unit. Replaced HT leads. Replaced main battery Replaced ECU Cleaned all visible earth points. Coil primary and secondary resistance is always middle of acceptable range when tested. The main relay was opened today and its contacts look fine, and seems to operate normally.
These actions have not had any effect on the problem.
Any help in solving this riddle would be very much appreciated.
AndyH