1991 Plymouth Colt Base, StandardFACTORY OEM SERVICE PROCEDURE

Ignition Timing

IGNITION TIMING (Degrees BTDC @ RPM)

Application (1) Basic (2)(3) Actual
1.5L
Colt & Colt 200 5 @ 650-850 10 @ 650-850
Mirage & Summit 5 @ 650-850 10 @ 650-850
1.6L
Mirage 5 @ 650-850 8 @ 650-850
1.8L
Eclipse 5 @ 600-800 10 @ 600-800
2.0L
Colt Vista & Galant (VIN V) 5 @ 600-800 10 @ 600-800
Eclipse 5 @ 650-850 8 @ 650-850
Galant
VIN R 5 @ 650-850 8 @ 650-850
VIN U 5 @ 650-850 12 @ 650-850
2.4L
Pickup & Ram-50 5 @ 650-850 8 @ 650-850
3.0L
Montero, Pickup & Ram-50 5 @ 600-800 15 @ 600-800
Stealth & 3000GT 5 @ 600-800 15 @ 600-800
(1) With ignition timing adjustment connector grounded or vacuum hose (farthest from distributor) disconnected.
(2) With ignition timing adjustment connector ungrounded or vacuum hose (farthest from distributor) connected. Ignition timing may fluctuate.
(3) If vehicle altitude is more than 2300 ft. above sea level, actual timing may be advanced.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.