KeizerBrickGuy
Sh*t pot stirrer
- Joined
- Jun 7, 2016
- Location
- Keizer, OR
Hey TBrickers!
So my Wife's 1990 244(LH2.4, AW70) has been acting up the last year or so, so much to the point she doesn't drive it anymore(driving her Subaru). It started acting funny about the time the Garage Sale came around. Figured it had been two years since it's last tune up with plugs, wires, cap and rotor. I did the tune up in the parking lot before departing for home. It started up fine and drove great. Queue the cold nights/cool mornings, it will crank a couple seconds and then finally start, once it does, it acts like its going to die and the idle is rough and loping like a massive cam. If you don't give it gas fast it dies. Definitely not a fuel issue, can smell gas. I thought maybe the cold start injector is leaking or triggering, so I disconnected it. Not much of a change. It only does it on a cold start, but if it's been running and still fairly warm, it doesn't do it. Timing appears to still be set. Vacuum lines are good, accordion hose is split-free I can say it does hesitate super intermittently from as stop when accelerating. I have been so busy with our new house and life, I haven't had much time to look into it further. But I do drive it a few times a month to/from work to keep it happy. I am at a loss, Carl has been trying to help with my diag, thank you again, Carl! Local TBrickers, help in person would be a huge help.
UPDATES:
-Verified FPR is still good and functioning, was done 2016
-Vacuum lines are intact and good
-ECT sensor was done 2016
-Replaced FPR vacuum line back in December
-Intake accordion new back in 2016, still no cracks
-Intake manifold gasket done in 2016
-After testing ECT, resistance was incredibly high for temperature and no voltage coming from sensor when KOEO test was completed at the ECM pin. When unplugged and engine started, does not exhibit original problems with loping, rough idle or acting like it was missing.
So my Wife's 1990 244(LH2.4, AW70) has been acting up the last year or so, so much to the point she doesn't drive it anymore(driving her Subaru). It started acting funny about the time the Garage Sale came around. Figured it had been two years since it's last tune up with plugs, wires, cap and rotor. I did the tune up in the parking lot before departing for home. It started up fine and drove great. Queue the cold nights/cool mornings, it will crank a couple seconds and then finally start, once it does, it acts like its going to die and the idle is rough and loping like a massive cam. If you don't give it gas fast it dies. Definitely not a fuel issue, can smell gas. I thought maybe the cold start injector is leaking or triggering, so I disconnected it. Not much of a change. It only does it on a cold start, but if it's been running and still fairly warm, it doesn't do it. Timing appears to still be set. Vacuum lines are good, accordion hose is split-free I can say it does hesitate super intermittently from as stop when accelerating. I have been so busy with our new house and life, I haven't had much time to look into it further. But I do drive it a few times a month to/from work to keep it happy. I am at a loss, Carl has been trying to help with my diag, thank you again, Carl! Local TBrickers, help in person would be a huge help.
UPDATES:
-Verified FPR is still good and functioning, was done 2016
-Vacuum lines are intact and good
-ECT sensor was done 2016
-Replaced FPR vacuum line back in December
-Intake accordion new back in 2016, still no cracks
-Intake manifold gasket done in 2016
-After testing ECT, resistance was incredibly high for temperature and no voltage coming from sensor when KOEO test was completed at the ECM pin. When unplugged and engine started, does not exhibit original problems with loping, rough idle or acting like it was missing.
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