Arizona stangers - loan me or sell me your old speed density computer!

68keyblr

Dirt-Old 20+Year Member
Mar 17, 2003
946
21
49
Arizona
Anyone in AZ (east valley) have an old Speed Density computer that works that they can loan me or sell me cheap?

Here's the situation - I have no fuel pressure and no voltage on the lines that carry signals to the fuel system. I am about to convert to MAF, but before I do I want to make sure everything else in the car is in working order. To do that, I need to test my theory that my problem is a blown computer.


Thanks in advance for the help!
 
  • Sponsors (?)


The computer is not highly likely to be at fault. I would probe the fuel pump relay socket and note values. If you're missing the controlled ground, this is sent from the computer. Otherwise the circuit is rather 'mechanical'.

See Jrichker's checklist for systematic diagnostics.

Good luck.