At it again, now with a misfire that I can't seem to find a reason for. A couple months ago I had posted for a crank/no start, no spark that had me chasing my tail for weeks. That issue turned out to be my distributor. I replaced it, and all was right with the world..mostly. It seemed to have an intermittent miss after that and the distributor even still has some up and down play despite the hold down bracket bolt being tight. It doesn't seem to be leaking, though, and for the first week or so, never threw a code.
First time I had driveability issues was on the highway at about 70mph, my check engine light started blinking intermittently with no other symptoms. Within 20 minutes, and having exited to slower going roads, it lost power, and if I tried to go over 45 mph, the engine light would blinking again. I was a half an hour from home, and after checking under the hood for obvious issues, I limped it the rest of the way home doing about 30mph with no steady CEL, and obvious lack of power.
I had coincidentally ordered new injectors a few days before, but they took forever to get here, so I swapped the number 2 injector and noticed the wires in the connector were showing copper and brittle. I soldered in 4 brand new injector connectors and by this time I had a steady CEL with only P0302. No change with new connectors and different injector. My plugs and wires are brand new, I still swapped plugs 2 and 3 and even replaced cyclinder 2 wire. Still, no change.
Currently, it's driveable but only on city roads as there's no power and the CEL blinks under enough of a load. I've seen lots of posts for the 4.0 but not the 2.5 and while I realize troubleshooting isn't much different between the two, I figured it was worth the post. I've read to check compression and do a cyclinder leak test, and I'm renting the tester today for that. I have watched live data when driving and my STFT numbers seem reasonable and not crazy. I've noticed that the fuel system is a closed loop as it should be when driving around but when the check engine light blinks, it switches to open. If I understand the way that works correctly, it should only be open when cold at start up or wide open throttle, neither of which are the case when it happens. I can't ever get my calc load above 42%. And the FSM testing procedures mostly require a DRB which I obviously don't have.
Thanks in advance for input and suggestions.
First time I had driveability issues was on the highway at about 70mph, my check engine light started blinking intermittently with no other symptoms. Within 20 minutes, and having exited to slower going roads, it lost power, and if I tried to go over 45 mph, the engine light would blinking again. I was a half an hour from home, and after checking under the hood for obvious issues, I limped it the rest of the way home doing about 30mph with no steady CEL, and obvious lack of power.
I had coincidentally ordered new injectors a few days before, but they took forever to get here, so I swapped the number 2 injector and noticed the wires in the connector were showing copper and brittle. I soldered in 4 brand new injector connectors and by this time I had a steady CEL with only P0302. No change with new connectors and different injector. My plugs and wires are brand new, I still swapped plugs 2 and 3 and even replaced cyclinder 2 wire. Still, no change.
Currently, it's driveable but only on city roads as there's no power and the CEL blinks under enough of a load. I've seen lots of posts for the 4.0 but not the 2.5 and while I realize troubleshooting isn't much different between the two, I figured it was worth the post. I've read to check compression and do a cyclinder leak test, and I'm renting the tester today for that. I have watched live data when driving and my STFT numbers seem reasonable and not crazy. I've noticed that the fuel system is a closed loop as it should be when driving around but when the check engine light blinks, it switches to open. If I understand the way that works correctly, it should only be open when cold at start up or wide open throttle, neither of which are the case when it happens. I can't ever get my calc load above 42%. And the FSM testing procedures mostly require a DRB which I obviously don't have.
Thanks in advance for input and suggestions.
