Quote:
Originally Posted by darcane
- High cold idle is probably not a big concern by itself. This is a small percentage of your driving time, unless you do a lot of little trips.
- Not sure of your car's specs, but this sounds high.
- Uh... yeah, fix the leak. That is likely the cause of the high idle and could cause unusual driveability problems, maybe even low fuel economy.
- Yes, check that. Significant alignment issues will also lead to unusual wear patterns on the tires.
- yes, this is hurting you a little. Lower just the rear and aerodynamic drag increases.
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Im well aware of the adverse affects of not keeping your car in good repair. I already know that the vacuum leak wouldn't be correcting the high idle issue or helping the situation at all but it is not affecting drive-ability.
As for the alignment I know that it will make the tires wear unevenly but they are old, weather cracked, and with 60% tread left so im not terrible concerned for their well being. I'm just curious as to whether it will have a significant effect on the FE. I guess once I get that fixed ill make a little report of it.
Quote:
Originally Posted by Old Mechanic
The manifold problem is also causing the fuel mixture to be incorrect to different cylinders with the system trying to compensate by enriching the mixture to the cylinder that is getting unmetered air (vacuum leak).
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My car has a MAP (Manifold Absolute Pressure) Sensor which from my knowledge shouldn't be affected by any changes before the throttle body. Correct me if I'm wrong. Always interested in hearing other peoples piece haha.
