My 1993 acura vigor gs started sputtering at stop lights today, like it was about to die. Seemed better when accesories were off. And worse when I turned everything on lights, a/c, blower ect. I have the automatic transmission. 2 months ago I had the timing belt and water pump replaced. It has ran fine until now. I have noticed in the dark that with the lights on and the defrost on that the headlights and the dash lights dim when at a stop. Any idea what's wrong?

SOURCE: Left side lights Dim and windshield wipers operate

Hello ilandskater2,
It sounds like you may have caused a plug for the lights to come undone or you lost the ground to one side of the car. Some newer vehicles use a reverse type ground system with small computer controlled relays in the system. It sounds like you are getting a reverse feed on the power system under the hood. look at all the plugs and check to see if they are completely pluugged in and check the fuse block to see if any are blown causing the feed back. Check all the grounding points under the hood also. Hope this helps. Regards, rcampsr

SOURCE: 1994 acura vigor has abs and brakes lights on while driving?

Check for brake fluids and make sure all the brake fluid container is closed tightly. Also, you make have to bleed the brakes.

SOURCE: 99 Acura TL dies when I try to start

I have helped many Honda/Acura owners on this issue. Many mechanics will replace many parts prior to solving this problem, which then creates unnecessary repairs and spending. So here is my diagnosis: Notice if your speedometer drops to zero when your engine dies while driving. If this happens its your ignition switch failing. Ignition switches in Honda/Acura vehicles years 97-02 encounter faulty or shorted internal contacts. This causes premateur electrical failure to vital engine electrical parts, causing vehicle to stall intermittedly. A recall has been in place since 2002, approximately 1.3mil vehicles are affected, call your local honda/acura dealer for info and possible free repair or replace the ignition switch yourself. Hopefully my info helps you!!

SOURCE: BAD ENGINE NOISE RIGHT AFTER REPLACING TIMING BELT AND WATER PUMP

if poor performance was noticed right off the bat, the timing belt is not timed properly. this will cause lack of power, rough idle, pre ignition(little noisey), and rich exhaust.youre going to need to first, find a friend or someone whom you trust to do your automotive work.second youre going to need to start over by tearing it all down systematically and taking note of anything done wrong. third find reliable information on the timing marks for this vehicle. i hope for your sake nothing is broken. let me know how this turns out, ill be happy to help further if you need.

SOURCE: should I replace the timing belt & water pump

Yes it would be a very good idea to change them all at once. You can't go wrong there because most timing belts and water pumps go out around 90-100,000 miles. Go for it I would.

Good Luck!