Best portable Engine Analyzer ?

twobjshelbys · #1 (**permalink**) 09-30-2009, 02:36 PM

If you have DFI (Digital Fuel Injection) and electronic ignition you will probably want some kind of scope. I finished troubleshooting a problem with a scope borrowed from work as I could not determine whether the DFI controller or the ignition controller was at fault. The scope told me that the 12V signal from the FI controller to the ignition box was present so the failure had to be in the ignition box.

I've seen low bandwidth scopes on ebay for <$100.

patrickt · #2 (**permalink**) 09-30-2009, 03:46 PM

Quote:

Originally Posted by twobjshelbys

If you have DFI (Digital Fuel Injection) and electronic ignition you will probably want some kind of scope.

I forget that everybody in the world is not running an old Holley 4V.

A vacuum gauge isn't going to help much on a DFI, I guess.

RICK LAKE · #3 (**permalink**) 09-30-2009, 05:47 PM

patrickt Pat why would a vacuum gauge not work on an EFI motor? Last time I checked there was still vacuum, even with the TWM setup?

Vacuum gauge still helps with intake valve problems, too much back pressure like a clogged cat convertor or muffler.

I still use one about 2 times a week at work.

Basic tools still work on todays latest super duper efi motors.

2 stoke motor are a different thing. Rick L.

patrickt · #4 (**permalink**) 09-30-2009, 05:49 PM

Quote:

Originally Posted by RICK LAKE

I still use one about 2 times a week at work.

Basic tools still work on todays latest super duper efi motors.

Thank you for the ball-busting, Rick. May I have one more, please?

RICK LAKE · #5 (**permalink**) 10-01-2009, 03:55 AM

Patrickt SORRY Pat.

I didn't know it was that time of the month.

Start putting the toys away for the winter.

Could the club memebers help with a group hug??

See all better. With gas prices dropping, go ahead and for for another cruise. Going to be a nice weekend, maybe?

Rick L. Ps by the way have 2 stethoscopes, one like yours and electronic one. Use a long screw driver when lazy. By the way in the picture WHERE'S the fender cover??? Hood is open???? I did it again!!!

patrickt · #6 (**permalink**) 10-01-2009, 05:18 AM

Quote:

Originally Posted by RICK LAKE

... by the way have 2 stethoscopes, one like yours and electronic one.

Never heard of that. Does it actually work better than the old fashioned one?

kitcarbp · #7 (**permalink**) 10-01-2009, 07:26 AM

What about this one, any opinions on this one ? Looks like all I really need

Choices choices, here is a basic Sears analyzer that is an inductive tach type. This may be all I need, It can read alt output or crank amps up to 400A according to meter.