1969-1984 [Subscribe to Daily Digest] |
Have you done a compression test?
The first thing to do is find out if you have an engine in good mechanical condition.
The second thing to do is to find out if the ignition is working properly.
_Then_ and _only_ then do you worry about the fuel system.
One of the things to know about D-Jet is that it is _very_ sensitive to electrical system voltage. Make sure that the alternator is putting out 13.5 volts. If the system voltage drops, it'll run like crap. Putting high poewred driving lights on the car can cause it to run rough. high poered halogen headlights can have the same effect. Don't plan on having a powerful stereo system in that car with big amps that drain power.
I worked on a VW Squareback that had been to three shops and nobody could figure out the problem. I put a volt meter on the generator output, and when the voltage regulator stuck, the voltage dropped to 11V and the car ran crappy. Then the regulator would kick in, the system would go to 13.5 volts, and the car ran fine. This might happen at idle, or it might happen at 60mph on the highway.
There's not a lot you can test without having a meter to plug into the injection system. The Bosch tester plugs into the harness in place of the computer. You cannot run the car with the tester plugged in. The one we had at the shop in New Hampshire plugged in between the computer and the harness, so you could run the car and test the computer, too. I think the maker was "Janboe". Of course that tester would be about 30 years old now, and there aren't many people around who still have them. _Maybe_ an old dealer would have the Bosch one.
I used to work on quite a few cars with this system, but it's been a long time. I have to dredge up some dormant memory cells.
posted by 216.239.167...
, Sun, 12 Nov 2006 08:31:15
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