driv3r
07-11-2005, 05:58 PM
I could really use some help for my situation, so Pllleeease help me out if I'm missing something.
Just bought another 240, with a ka24de 1993. It's been having idle problems and cylinder one didnt seem to be firing in the beginning (now it is). Here's what I did:
Upgraded to Walbro fuel pump 255
changed the fuel filter to a z32 tt filter
changed the spark plugs to Iridium, then to OEM with a .039 gap, also tried the .044 gap
changed the spark plug wires, cap, rotor (OEM)
cleaned the IAC valve twice
reset the ecu
changed the injector #1 (all injectors are working now)
changed the MAF with a used one
Now the car doesn't idle as bad like at 3-500 rpms and dies (with the bad MAF). After I changed to the used MAF, the idle fluctuates up and down (800-1000). When I rev it doesn't cut off at 2500 rpms..I guess that's better...So now that I'm almost broke, I figure there's two possibilities left:
1st reason..the leftover three injectors despite they are running, are stuck open....
(before I changed the MAF the tips of the spark plugs were black- only 2,3,4.. and black puffs of smoke were coming out the tailpipe...plug #1 was clean, no carbon..had the signs of running rich) After changing the MAF, no smoke out of the tailpipe and I haven't checked the plugs yet...just figure it's still too early...
2nd reason...the ecu is bad....
possibly a 3rd reason: used MAF is still bad??
Someone please help me out here...I'm running out of ideas and cash..Thanks
Just bought another 240, with a ka24de 1993. It's been having idle problems and cylinder one didnt seem to be firing in the beginning (now it is). Here's what I did:
Upgraded to Walbro fuel pump 255
changed the fuel filter to a z32 tt filter
changed the spark plugs to Iridium, then to OEM with a .039 gap, also tried the .044 gap
changed the spark plug wires, cap, rotor (OEM)
cleaned the IAC valve twice
reset the ecu
changed the injector #1 (all injectors are working now)
changed the MAF with a used one
Now the car doesn't idle as bad like at 3-500 rpms and dies (with the bad MAF). After I changed to the used MAF, the idle fluctuates up and down (800-1000). When I rev it doesn't cut off at 2500 rpms..I guess that's better...So now that I'm almost broke, I figure there's two possibilities left:
1st reason..the leftover three injectors despite they are running, are stuck open....
(before I changed the MAF the tips of the spark plugs were black- only 2,3,4.. and black puffs of smoke were coming out the tailpipe...plug #1 was clean, no carbon..had the signs of running rich) After changing the MAF, no smoke out of the tailpipe and I haven't checked the plugs yet...just figure it's still too early...
2nd reason...the ecu is bad....
possibly a 3rd reason: used MAF is still bad??
Someone please help me out here...I'm running out of ideas and cash..Thanks