89 CFI EFI trouble
I'm new to this Group
I have an 10/89 cfi efi falcon it has about 330K(mostly country km's) on it and to date has been a very reliable family bus. Just lately it has been doing some odd things, it is hard to start sometimes when it is warm and has been left for half an hour or so,it fires but then stops straight away,does this alot, it takes quite some time to get it going!!
I took it to a tune up place and they replaced the map sensor and air charge temp sensor and spark plugs but it still plays up sometimes,I have just replaced the fuel filter( I examined the contents, it had very fine black looking stuff in it otherwise it seemed OK) and hoses, air filter is OK.
My wife drives this car most of the tme so it's hard to get good feedback but I drove it yesterday and when you accelerate after it has been parked for 10 or 15 minutes it dies and then backfires ( sounds like through the carbie in old car terms) it settles down after a while and seems to run fine.
Cold starts OK.
I have read some of the other threads and some good suggestions I will check the coil and TFI connections, dizzy cap and rotor button( I think I replaced these about 5 or 6 years ago) and check for vacuum leak perhaps, but , is this a fuel problem or ignition problem.
The injectors have never been changed or the fuel pump but I would like to be sure I'm replacing them for a good reason. I have alraedy spent $400 dollars on this problem without a result.