Engine will fire, but no power - Video for referance

[280z1975]

Ok, so I have been a bad Z owners as of late. Back in the summer I was driving my car and it suddenly lost power. It just started to choke and no matter how much I hit the accelerator there was no power. It will turn over and start, but after just past idle the car just has NO go what so ever.

 

I put the problem to the side as I had a crazy few months with work, switching jobs and now saving up for a new house and business. Today I fired up the car and shot a video of the problem so I can show everyone here and get an idea of what I might be dealing with.

 

My best guess is a vacuum leak, possibly with the header or value cover. I would LOVE to get this sorted in the next two weeks before we move to make things a bit easier on me. So any ideas on where to start and what I could do?

 

BTW: it's 1975 280z with FI L6, forgot to add the cars year...

 

Here is the video link:

 

http://www.youtube.com/watch?v=79a6WT5J6Gc

 

-Gregg-

[z-ya]

Sounds like there is a blockage in the intake or exhaust. I would check the following:

 

- Air cleaner, make sure nothing is living in it.

- Air flow meter, make sure the flapper inside can move freely

- Have some check for exhaust flow when you rev it.

 

Let us know how you make out.

 

Pete

[zedman240]

Check the throttle position switch. Its like the ECU isnt giving more fuel when you open the throttle. Or check fuel pressure. Should be at least 38psi approx. If the throttle posi switch isnt working, it wont give the ECU a signal to say you are accelerating to inject more fuel. Thats what it sounds like too me..