First off I got an 89 rx7 gxl n/a. When I'm driving or when it's idling all of my warning lights come on at once (low oil, exh overheat, seat belt, hatch, etc). They do it intermittentantly and it just started happening and has done it more and more often. Just wondering if anyone has experienced this or know what it is. Also when the lights come on my headlights dim slightly and the car seems to surge when I'm cruising. Please help! Thanks.

 

ECU issues maybe? I haven't a clue honestly. Something that effects the warning lights AND the engine behavior?

 

The alternator will use the warning lights to indicate there is a charging problem ocurring. Alternator should output about 14.5 volts.

 

If your voltage is too high or too low, this will happen. Alternator or voltage regulator are on their way out.

 

i'm also gunna say alternator. this sounds a lot like when my alt died on my 88 gxl. i was driving home from a buddy's house when all the idiot lights came on. being a new owner i thought it was just an electrical gremlin, till my car flat out died in an intersection. didn't know i was running off just the batt. swapped in an FD alt and never looked back.

 

Yes, it's the alternator. The regulator is toast, the B-post connection is loose, or the belt is loose and slipping.