Question about 1987 Pontiac Fiero

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Running very rich

The 1987 pontiac fiero runs rich with no trouble codes

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  • muhhuh May 11, 2010

    2.5 or 2.8?

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This running very rich - 1c47866.jpg

Posted on Feb 18, 2010

  • GM guy
    GM guy Feb 18, 2010





    This is

  • GM guy
    GM guy Feb 18, 2010

    I tried to type;This is probly a O2 sensor problem.See the text,I think I posted it enough?

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1 Answer

Cooling engine


You have four digit trouble codes on a 1987 model car ??

Jan 21, 2014 | 1987 Pontiac Fiero

1 Answer

87 fiero gt code 12


Code 12 doesn't need fixed. When you begin to test codes you will get the code 12 but that is just telling you that it is in diagnostic mode, it will flash the code 12 three times, then after that it will flash all stored trouble codes. After all stored trouble codes have been displayed, the ECM will repeat the process( so getting code 12 again means you have reached the end of the stored codes list) If it displays code 12 three times and then displays code 12 again , it means you have no problem codes.

Aug 29, 2012 | 1987 Pontiac Fiero

1 Answer

How do i use the diagnostic tool (tools) in my 1987 Pontiac Fiero GT?


Your Fiero uses the OBDI system. Do you have a OBDI scan tool? A OBDII scanner will not work on your car. It is possible to jump across the A and B terminals on the ALDL connector under the dash, using a metal paper clip as a jumper. The trouble codes would appear on the dash as a blinking check engine light. If you wish, I can get the website that has excellent instructions on readidng the flashes to determine the codes.

Jan 29, 2011 | 1987 Pontiac Fiero

1 Answer

I need a firing order diagram for a 1987 pontiac fiero


1987 Pontiac Fiero
2.5 liter L492717859.gif 1987 Pontiac Fiero
2.8 liter V-641894283.gifPlease rate this help.....Notice there is v6 and 4 cyl makesure you get the write one

Nov 30, 2010 | Pontiac Fiero Cars & Trucks

2 Answers

What is the Recommended oil weight for 1987 2.8 v6 fiero


1987 PONTIAC FIERO 2.8L 6-cyl Engine Code [9]
All TEMPS......5W-30 SAE 5W-30 is preferred.

CAPACITIES: Engine, without filter..........3.8 liters, Add extra oil when replacing filter. After
refill check oil level.
Oil Drain Plug.....15-20 ft/lbs

Thank you for using fixya and good luck

Nov 04, 2010 | Pontiac Fiero Cars & Trucks

1 Answer

What is the 1987 pontiac fiero gt v6 check engine light code list?


CODE 12- NO DISTRIBUTOR REFERENCE PULSES ECM. CODE 13- OXYGEN CIRCUIT. CODE 14- COOLANT SENSOR HIGH TEMP CODE 15- COOLANT SENSOR LOW TEMP. CODE 21 - THROTTLE POSITION SENSOR VOLTAGE HIGH.CODE 22 - THROTTLE POSITION SENSOR VOLTAGE LOW.CODE - 23 MIXTURE CONTROL SOLENOID.FOR CARBURETOR ENGINE. CODE 24 -VECHICLE SPEED SENSOR. CODE 32 - BARO CIRCUIT LOW.CODE 32 - FUEL INJECTED EGR VALVE VACUUM SWITCH SHORTED TO GROUND.OR EGR VALVE SOLENOID CIRCUIT OPEN. CODE 33 - MAP SENSOR.CODE 34 - VACUUM SENSOR OR MAP SENSOR.CODE 35 - IDLE SPEED CONTROL. CODE 41 - EST CIRCUIT. CODE 42 - ELECTRONIC SPARK TIMING.CODE 43 - ELECTRONIC SPARK CONTROL UNIT. CODE 44 - LEAN EXHAUST.CODE 45 - RICH EXHAUST. CODE 51 - PROM OR MEM CAL.CODE 52 - CALPAK. CODE 53 -EGR VALVE CARBURETED ENGINE THE EGR VALVE VACUUM SENSOR HAS RECEIVED IMPROPER EGR VACUUM. CODE 54 - M C SOLENOID CARBURETED ENGINE MIXTURE CONTROL SOLENOID SHORTED OR FAULTY ECM.CODE 54- FUEL INJECTED ENGINE FUEL PUMP VOLTAGE IS LOW.CODE 55 - ECM MAKE SURE PCM GROUND CONNECTIONS ARE TIGHT.IF OKAY.REPLACE THE ECM.

Mar 27, 2010 | 1987 Pontiac Fiero

1 Answer

1987 fiero starts runs good til you put a load on it then no response.


check vacuum advance module on distributor with cap off **** on hose if advance not moving you have found problem.

May 09, 2009 | 1987 Pontiac Fiero

1 Answer

High RMS at 65 mph


yes it sounds like you have no top gear/OD. run a trouble code test using the info at the link below.

http://check-engine-light-codes.blogspot.com/2006/03/gm-1983-95-vehicles-obd1-codes-self.html

May 04, 2009 | 1986 Pontiac Fiero

1 Answer

1987 pontiac fiero 4 cyl does not start, over fueling


its most likely the cpu fuel management this could cause the car to be running to rich

Mar 02, 2009 | 1986 Pontiac Fiero

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