1992 Camaro Rs 3.1 Hesitates under acceleration.

Remove it..Probably installed incorrectly . Tach is probably incorrectly wired into the distributor harness and effecting rpm voltage to the speedometer and may possibly blown the voltage regulator to the gauge in the dash.

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CHECK FUEL pressure and take a fuel sample see if has water in it. since started problem rt after getting gas sounds lik you got some bad fuel

Possibly ignition wires. Is the engine light on? If yes, have the car scanned for trouble codes and report codes to FixYa.

Here is a link for you to check the DTC code to see what issues your engine management has detected. I am going to suspect the EGR valve may be stuck open, that's why your having most of the problem you have described. Good luck and keep me posted and check or replace the EGR valve, the car is too old to just clean out the EGR valve.

http://www.troublecodes.net/GM/

lol, i had the same problem on same car 2 months ago. i disconnected the gauge cluster and then moved it down manually and the plugged it back in. seems to work fine for me

Hook fan up to Batt power. if it work check fuses and relay. if no problem its a wiring problem. If fan is inop replace it

well, need to check fuel pressure, spark. Ignition module in distributors go out that is common

check fuel pump pressure .if all is good check the ignition system.

are your battery post bolts clean and tight, my 89 rs ran fine untill i decided i wanted shiny new battery bolts, when i put them in and tightened them down my car had no power at all, i checked how tight they were, and they were TIGHT so i wiggled the black cable and re tightened it and bam my lights turned on, tryied starting it, and it started, sometimes you just gotta make sure the connection is really good, not just how tight it is, also check your ground wires, there are a few but the main 2 are located at the front pass side next to the batt, and on the back firewall going from the bottom pass head to the firewall, hope that helps, if not comment back