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Old 10-27-2013, 10:10 AM   #1
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check engine light blinking

1995 rio grande. My light blinks 3 times stops then 2 times. I have a loss of power. Takes a couple of Times to start, sputters when under load, randomly stalls. I replaced plugs, wire's, distributor(the whole thing) coil, crank position. Need help please I don't know if its fuel pump or the computer.

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Old 10-27-2013, 12:20 PM   #2
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Do a search for OBD1 codes. I seem to remember a 32 is an EGR failure. The valve could be bad causing a huge vacuum leak.

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Old 10-27-2013, 12:29 PM   #3
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Do you think that could be causing my running problems
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Old 10-27-2013, 12:40 PM   #4
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Its possible. You need to get a good manual and go through the diagnostics to check the system. I hesitate to say that that is definitly your problem because Lond Distance Diagnostics can be tough. That being said, if it were me, that is where I would start. Try to avoid blindly swapping parts until you have diagnosed the problem.
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Old 10-27-2013, 12:50 PM   #5
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Ill start with that. I also smell gas after a turn it off
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Old 10-27-2013, 01:14 PM   #6
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Originally Posted by Jeepfreak94 View Post
Do a search for OBD1 codes. I seem to remember a 32 is an EGR failure. The valve could be bad causing a huge vacuum leak.
Good idea, do the key off and on three times, third time leave it on and write down the number of flashes of the CEL, then compare to code list you can find here with a search...and get a decent repair manual too.....
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Old 10-27-2013, 01:20 PM   #7
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Would ths manual have the codes in it
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Old 10-27-2013, 01:44 PM   #8
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I believe the Haynes I had did have them.
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/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
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Old 10-27-2013, 01:47 PM   #9
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The good ones do. Most of the DIY manuals will cover basic maint. A good manual will offer diagnostic " trees" to folloow to help you narrow down your problem. These are available through some of your larger auto suppliers or on the old " interweb".
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Old 10-27-2013, 01:49 PM   #10
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11* No crank reference signal detected during engine cranking.
12* Direct battery input to PCM was disconnected within the last 50 key-on cycles.
13** No difference recognized between the engine MAP reading and the barometric (atmosphereic) pressure reading at start-up
14** MAP sensor input below minimum acceptable voltage.
or
MAP sensor input above maximum acceptable voltage.
15** No vehicle distance (speed) sensor signal detected during road load conditions.
17* Engine coolant temperature remains below normal operating temperatures during vehicle travel (thermostat).
21** Neither rich nor lean condition detected from the oxygen sensor input.
or
Oxygen sensor input voltage maintained above the normal operating range.
22** Engine coolant temperature sensor input above maximum acceptable voltage.
or
Engine coolant temperature sensor input below minimum acceptable voltage.
23** Intake manifold air temperature sensor input above maximum acceptable voltage.
or
Intake manifold air temperature sensor input below minimum acceptable voltage.
24** Throttle position sensor input above maximum acceptable voltage.
or
Throttle position sensor input below minimum acceptable voltage.
25** A shorted condition detected in one or more of the idle air control motor circuits.
27* Injector #1 output driver does not respond properly to the control signal.
or
Injector #2 output driver does not respond properly to the control signal.
or
Injector #3 output driver does not respond properly to the control signal.
or
Injector #4 output driver does not respond properly to the control signal.
or
Injector #5 output driver does not respond properly to the control signal.
or
Injector #6 output driver does not respond properly to the control signal.
33* An open or shorted condition detected in the A/C clutch relay circuit.
34* An open or shorted condition detected in the speed control vacuum or vent solenoid circuits.
or
Speed control switch input below the minimum acceptable voltage.
or
Speed control switch input above the maximum acceptable voltage.
35* An open or shorted condition detected in the radiator fan relay circuit.
41* An open or shorted condition detected in the generator field control circuit.
42* An open or shorted condition detected in the auto shutdown relay circuit.
44* An open or shorted condition exists in the engine coolant temperature sensor circuit or a problem exists in the PCM's battery temperature voltage circuit.
46** Battery voltage sense input above target charging voltage during engine operation.
47** Battery voltage sense input below target charging voltage during engine operation. Also, no significant change detected in battery voltage during active test of generator output.
51** Oxygen sensor signal input indicates lean air/fuel ratio condition during engine operation.
52** Oxygen sensor signal input indicates rich air/fuel ratio condition during engine operation.
53* PCM internal fault condition detected.
54* No fuel sync (camshaft signal) detected during engine cranking.
55* Completion of diagnostic trouble code display on the malfunction indicator lamp (check engine lamp).
62* Unsuccessful attempt to update SRI (service reminder indicator) miles in the PCM EEPROM.
63* Unsuccessful attempt to write to an EEPROM location by the PCM.

* - Check engine lamp will not illuminate at all times if this code was recorded. Cycle ignition key as described and observe code flashed by check engine lamp.

** - Check engine lamp will illuminate during engine operation if this code was recorded.

PCM = Powertrain Control Module (the engine computer)
MAP = Manifold Absolute Pressure (the sensor that measures how hard the engine is sucking air through the intake manifold
EEPROM = Electrically Erasable Programmable Read Only Memory (a type of computer chip used inside the PCM)
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/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
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Old 11-26-2013, 07:08 PM   #11
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Guys, I don't understand the instruction to turn key on/off three times then count the number of times the CEL (check engine light?) flashes. Mine doesn't flash at all. I have a 2000 Wrangler 2.5l auto trans (I know, I know. I had a 16 year old daughter in a bad traffic area.) The CEL was usually on, occaisionally off. Now it is on about half the time, flashing about half the time. Sometimes runs perfect, sometimes sluggish and sputters on acceleration (relatively speaking), then runs better at higher RPM's. Sometimes doesn't like to run with a steady throttle at 40 to 55 mph. Sputters a bit. No correlation between CEL status and running condition.
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Old 11-26-2013, 07:28 PM   #12
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Guys, I don't understand the instruction to turn key on/off three times then count the number of times the CEL (check engine light?) flashes. Mine doesn't flash at all. I have a 2000 Wrangler 2.5l auto trans (I know, I know. I had a 16 year old daughter in a bad traffic area.) The CEL was usually on, occaisionally off. Now it is on about half the time, flashing about half the time. Sometimes runs perfect, sometimes sluggish and sputters on acceleration (relatively speaking), then runs better at higher RPM's. Sometimes doesn't like to run with a steady throttle at 40 to 55 mph. Sputters a bit. No correlation between CEL status and running condition.
Not sure if the key thing will work on 2000. YJ years are from 87-95. Yours is a TJ, years from 97-06.
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Old 11-26-2013, 07:29 PM   #13
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This "trick" only works fir obd1 cars. A 2000 can plug into a scan tool and tell you everything with it
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Old 11-28-2013, 06:36 AM   #14
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Usually on obd2 cars a flashing cel is not good. I means a major misfire issue. You can buy one at most parts stores or have them scan it. I use the Dash Command app for my iPad with a wifi adaptor because it was a lot cheaper and gives more infor than the cheapies at the parts store.
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Old 11-30-2013, 01:50 AM   #15
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OP, it sounds like your EGR took a dump. A 32 code is "open or closed EGR circut short." Start with that.

Not sure on Jeeps, but the key trick works on my 2001 Dodge Ram. Been doing it for years to check codes. On OBD-II vehicles with a LCD odometer the codes will be displayed in the odometer.


Jkilbert is correct, a flashing CEL on OBD-II vehicles indicates multiple misfires. The initial code will be P300 followed by whatever cylinders were logged as misfiring. So if 3 & 6 misfired, the codes would be P300, P303, P306.
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Old 12-02-2013, 12:58 PM   #16
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Changed plugs and wires. Seemed to run smoother than usual at start up. Haven't had a chance to drive fully warmed up. That is when the problems are the worst.

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