Recently purchased an '86 LX with 26k original miles (really).
When I purchased it (at an estate sale) I knew the heater core needed to be replaced (famous coolant stain in the passenger floorboard). It ran rough (rich) and brakes were trash. It's basically sat for 15+ years so throw in tires and a bazillion other problems as well. Got the brakes going (for the most part but still have some work to do).
Dropped the fuel tank, emptied out the bad gas, replaced the fuel pump, fuel filter, and fuel injectors. Threw in some fuel system cleaner (chevron). Checked the air filter (clean). Cleaned out the fuel rail. The car still runs the same. Plugs are heavily carbon fouled (cleaned them up and put them back in).
The car acts like it has a cam (but doesn't - entire car is original). At idle it struggles not to die. Give it a little gas to keep it running. After it's hot, it will die at idle without gas. Black smoke out the exhaust.
I finally drove it about 7-8 miles yesterday. Once it gets over 1500 rpm's and I push the gas pedal in more than ~5% it runs ok. Less than 5% pedal it bogs and jerks.
I checked for vacuum lines not being plugged in yesterday. I think they all are.
The only thing I can think of is possibly the throttle body is stuck. So, at idle, it's starving for air. But, if I get into the gas it pushes open. Is there anyway to test this?
Anybody have any better ideas?
When
When I purchased it (at an estate sale) I knew the heater core needed to be replaced (famous coolant stain in the passenger floorboard). It ran rough (rich) and brakes were trash. It's basically sat for 15+ years so throw in tires and a bazillion other problems as well. Got the brakes going (for the most part but still have some work to do).
Dropped the fuel tank, emptied out the bad gas, replaced the fuel pump, fuel filter, and fuel injectors. Threw in some fuel system cleaner (chevron). Checked the air filter (clean). Cleaned out the fuel rail. The car still runs the same. Plugs are heavily carbon fouled (cleaned them up and put them back in).
The car acts like it has a cam (but doesn't - entire car is original). At idle it struggles not to die. Give it a little gas to keep it running. After it's hot, it will die at idle without gas. Black smoke out the exhaust.
I finally drove it about 7-8 miles yesterday. Once it gets over 1500 rpm's and I push the gas pedal in more than ~5% it runs ok. Less than 5% pedal it bogs and jerks.
I checked for vacuum lines not being plugged in yesterday. I think they all are.
The only thing I can think of is possibly the throttle body is stuck. So, at idle, it's starving for air. But, if I get into the gas it pushes open. Is there anyway to test this?
Anybody have any better ideas?
When