1991 hyundai scoupe codes

These are the same bolt patterns, bolt pattern is 4 X 4.5 or also known as 4 X 114MM. Measure 2 lugholes across from each other and it should measure 4 1/2" US or 114MM. the center hubs may be smaller/larger. Check the center hub size before purchasing:
1997 Acura- CL 16 x 6 (5 straight spokes)
1998 Acura- CL 16 x 6 (5 dual straight spokes)
1998 Acura- CL 16 x 6 (7 straight spokes
1990-89 Acura- Legend 15 x 5.5
1996-95 Acura- TL 15 x 6 (5 straight spokes with groove)
1997-98 Acura- TL 15 x 6 (11 straight spokes)
1994-92 Acura- Vigor 15 x 6 (11 triangular slots)
1999-98 Chevrolet- Metro
1989-85 Chevrolet- Sprint
1991 Dodge- Colt Vista 13 x 5 (15 slots)
1993-92 Dodge- Colt Vista 14 x 5.5 (5 straight spokes)
1992-84 Eagle- Summit/Summit Wagon
1992-91 Eagle- Summit 13 x 5 (15 slots)
1993-88 Ford- Festiva 12 x 4 40mm offset
1993-91 Ford- Festiva 12 x 4.5 40mm offset (8 elongated triangle slots)
1997-89 Geo- Metro
1999-92 Honda- Prelude
1999-90 Honda- Accord (4 cylinder models)
1999-91 Hyundai- Elantra
1995-92 Hyundai- Elantra 14 x 6 (16 slots)
1995-92 Hyundai- Elantra 14 x 5.5 (7 curved spokes)
1998-96 Hyundai- Elantra 14 x 5.5 (5 straight spokes)
1999-90 Hyundai- Accent/Excel/Pony
1994-92 Hyundai- Excel 13 x 5
1991 Hyundai- Sonata 15 x 6 (18 rectangular slots)
1994-92 Hyundai- Sonata 15 x 6 (9 triangular slots)
1996-95 Hyundai- Sonata 15 x 6 (9 straight spokes)
1997-95 Hyundai- Sonata 15 x 6 (5 twisted spokes)
1998-97 Hyundai- Sonata 15 x 6 (5 straight single groove spokes)
1995-90 Hyundai- Scoupe
1992-91 Hyundai- Scoupe 14 x 5 (6 curved spokes)
1995-93 Hyundai- Scoupe 14 x 5 (5 curved spokes)
1998-97 Hyundai- Tiburon 15 x 6 (5 twisted spokes)
1998-97 Hyundai- Tiburon 15 x 6 (5 raised straight spokes)
1989-81 Mazda- 323/GLC
1985-84 Mazda- RX7 GSL-SE 14 x 5.5 40mm offset
1991-86 Mazda- RX7 14 x 5.5 40mm offset
1987-85 Mazda- 626/MX-6
1994-91 Mercury- Capri 14 x 5.5 45mm offset (16 holes)
1994-91 Mercury- Capri 15 x 6 45mm offset (3 curved spokes
1994-91 Mercury- Topaz 14 x 5.5 (16 holes)
1998-92 Mitsubishi- Expo/Expo LRV/Vista Wagon
1994-92 Mitsubishi- Expo 14 x 5.5 (5 straight spokes)
1999-84 Mitsubishi- Galant
1991 Mitsubishi- Galant 14 x 5.5 (18 slots)
1991 Mitsubishi- Galant 15 x 6 (8 straight spokes)
1991 Mitsubishi- Galant 15 x 6 (5 straight spokes)
1993-91 Mitsubishi- Galant 14 x 5.5 (15 slanted spokes)
1992 Mitsubishi- Galant 15 x 6 (5 straight spokes)
1993 Mitsubishi- Galant 15 x 6 (8 triangular and 8 rectangular slots)
1993-84 Mitsubishi- Mirage
1993-91 Mitsubishi- 2000GTX 14 x 5.5 (18 slots)
1991-80 Mitsubishi- Tredia
1999-93 Nissan- Altima
1995-82 Nissan- Stanza
1991-84 Nissan- Maxima
1990-78 Nissan- B310/Pulsar
1989-94 Nissan 240sx
1989-94 Nissan Silvia
1986-82 Nissan- Sentra
1993-84 Plymouth- Colt
1985-79 Plymouth- Arrow/Champ
1999-89 Suzuki- Swift
1991-80 Toyota- Cressida
1985-80 Toyota- Celica

You stated the 'CHECK ENGINE' light came 'ON'!... what/which DTC'S (Diagnostic Trouble Codes) OBDI were retrieved? In 1991, OBDI (1) was used. You could retrieve codes by either turning the ignition switch on/off two or three time within 3 seconds and the light would flash for each number (this way you could determine which system was affected). The POSSIBLE CAUSES are many:

Crank Position Sensor
Ignition Coils/Wires
Water/contaminated fuel
Electrical (Relay(s), fuse(s), Poor ground connections, failed ECU (Engine Control Unit), etc.

Are you getting a SPARK to the plugs?... if so, check fuel pump pressure
If you're not getting a spark to the plugs or not getting a fuel injector PULSE, then the crank position sensor MIGHT BE the problem.... NOT SURE!

Too many POSSIBLE or PROBABLE causes.

In order for an engine to RUN, it needs these things:

1. Air flow (intake AND exhaust)
2. Fuel (proper fuel to air mixture)
3. Compression (140 to 2?? psi)
4. Proper Timing (not too advanced/retarded)
5. Ignition (sufficient and at the correct/right time)

Now, after listing these 5 things, without CHECKING each one, your guess is a good as mine.

Color codes are usually under the trunk mat on a white label...if not, look in the front of your trunk.

If you have a national auto parts chain store near you (autozone, advanced auto parts, pep boys,etc etc) Have them hook up an obd2 tester to your car and see if any codes come up(they do this for free!!!). If nothing then I would check the ignition switch module inside the steering column, it may be energizing the starter motor but not sending a signal to the ecu that the car is trying to be started.

Yes, sounds like it's low on refrigerant. You can buy a kit and do it yourself but I feel it should be vdone by a n a/c tech. For many reasons. Improperly done more problems may develope. Good luck

Follw the top radiator hose to were it ends, there will be a hosing with two bolts, undo bolts, lift of housing to reveal thermostat, use new gasket when relacing

Check this link & read below it too.

http://www.autozone.com/N,26200243/shopping/specsSelect.htm

10 degrees BTDC

HI
the (ECT)coolant temp sensor have two wire and you can test it by (AVO meter) the two wire :-
the 1st is ground from ECM
the 2nd is have 5 volt whine disconnect the connector
of (ECT) and less then whine connected the (ECT)
the (ECT)was electronic thermo resistor
the one wire sensor work to coolant temp gage in dashboard

the (VSS) locate in trans axle it was electromagnetic sensor send signal to determine the distance in (KILOMETER)

with my best wishes

have a look at link:
http://www.expresspaint.com/helpful_tips/color_location_guide.asp#infinity