89 sc idle problem

Car idles at 500 rpm consistently, and lacks power when any load is put on the engine.
Already replaced: IAC, Ignition control module, Spark plugs/wires, coil pack, ALL engine gaskets (intake, head, TB etc.)

Heres a video:
http://www.youtube.com/watch?v=3POp5-4fS34&feature=youtu.be

Check for collapsed motor mounts... and no Im not joking. Id recommend the solid rubber replacements.

245,000 on the clock. When was the last time anything was rebuilt as far as the engine, blower, clutch?

Well, the clutch was just replaced, and we also just replaced the head gaskets after we did the clutch.

TbirdSCFan said:

Check for collapsed motor mounts... and no Im not joking. Id recommend the solid rubber replacements.

Click to expand...

The guy who owned it before us had already replaced them to solid engine mounts. And that really isn't the problem anyway.

Thanks for any advice you can give us. God bless.

Suggest checking the fuel pressure regulator to make sure the vacuum hose that attaches to the return plenum is installed. Without the hose installed fuel pressure will stay constant at around 39 psi instead of increasing pound for pound with boost. You can also do a fuel pressure test by attaching a gauge to the test port on the fuel rail.

You say it doesn't have any power under a load, but it would help if you were more specific. For example does it bogg and just feel poochy when you step on the gas or does it buck and backfire? Are you getting a check engine light ?

David