TexasHiwayman

My check engine light came on. Borrowed a code reader and saw P0803. Installed the fuse after opening it. Cleared error code and started car.
No check engine light.
Had the code checker for next couple of days.

After starting with no light after shutting off, light comes back on when started. Cleared same error every time. A couple of times I got 2 starts before CE light came on. Smart fuse has a diode, correct? Diodes block current 1 way but not the other, correct?. Is this a polarity issue?
Any insight would be welcome.

PS Evil Dead 2 is on. Was thinking of borrowing Bruce's chain saw.

jft69z

A long time ago I had a smart fuse (blown) do what you stated. Flip the fuse around & try again. I think there's 2 diodes or LEDs in there, otherwise you would have to put the fuse in there one specific way (directional, so to speak).

If the LED on the fuse isn't lit up (indicating the fuse is blown as it should be), that's an indication that one of the diode/LEDs is probably bad. In that case, vehicle sees it as an open circuit/no fuse and sets the CEL. Flipping it around should work. If not, blow another smart fuse and try again.

TexasHiwayman

Thanks much. I'll give it a try.

Stavesacre21

Another option...buy one of the skip-shift doo-dads that plugs inline under the car at the tranny. Had them in 3 of my Vettes and never had an issue with one. In fact, I don't believe I've ever heard of anyone having issues with them, although these fuse-related methods seems to have issues on occasion

Dano523

When you blow a smart fuse, it has two LEDs on it that will only be good for so long. The current through the LED is direction, so as said, if one of the LEDs does go out, you can switch the dirrection of the fuse to work until you burn out the other LED as well.


As for a better solution, you can either make, or buy as Fuse that has a 222 micro resistor (2.2K) soldering in line instead.


Start by reading this to understand how the resistor fuse works,
http://xse.com/leres/z06/cags.html

And if you don't want to make a 2.2K resistor fuse, then you can buy one pre-made instead.

http://complianceparts.com/c6cagstrblshoot.html

And will look like this, and not just a blow smart fuse that some is marking up way in price that you are going to have problems with the LED burning out over time instead,


As for the Plug type device that gets installed back on the trans, it just a 2.2K resistor type device as well. Hence on the C5's, there where other items on the fuse that did not allow you to put the resistor type fuse at the fuse box, and you had to mount the resistor down line at the trans instead. So the trans type plugs will work, but it just make a lot of extra work by having to get under the car to plug the fuse in at the end of line at the trans (when at the fuse box works the same on the C6's).

Bert,M.

i installed this 1-4 skip shift eliminator fuse last week on monday and i also had the check engine light pop up with same code p0803. cleared the code, and every time i restarted the car the check engine returned back on the display. errrggggg. but the 1-4 did not show up any more on the dash. so i just decided to just continue to drive it with the check engine light on for awhile and after 2 days it just went off automatically. this was 5 days ago and I've been driving it for the past 5 days. Also rechecked with scanner and i have no code set.

Rjhctrapp

I spent the $20 on the skip shift eliminator plug for the trans. Love it. Never has an issue. Getting under the car is tricky but since mine was on a lift having a new engine installed care of the selling dealer, I installed the eliminator in about 2 seconds. Find a friend with a lift.

hawkgfr

I used a smart fuse and blew it on purpose to eliminate cags skip shift...not light after more than a month of use....




Not sure how long the led will work though...

TOM WELCH

hp tuners works for this as well

RogerRamjet21

I put one of those in my 94 Firebird Formula almost as soon as I bought it (new). It worked perfectly for the entire 103,000 miles I put on that car.
My C6 has it turned off in the tune.