Question about Acer Aspire 9410-4317 Notebook

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94 geo metro 3 cyl. not running code 13,14,51. have spark have 20+psi fuel pressure have cleaned egr valve still no go

Engine was running good then bogged way down almost died then cleared out ran good till got to work after wook it would not start sprayed staring fluid in t.b. it wood start but die right away took it home on car trailer took pressure regulater off checked and cleaned had it running for a little bit but know it wont even start with starting fluid.

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Where is the location of the camshaft position sensor ? aka: CMP.


images for 1997 geo metro camshaft position sensor

1993 Geo Metro Camshaft Position Sensor Unraveled ...

? 5:18
www.youtube.com/watch?v=XXA1yFePM4w
Apr 8, 2015 - Uploaded by Jeff Dean
This is Part One of a series where I document my troubles with the Camshaft Position Sensor. This first

Sep 18, 2015 | 1997 Geo Metro

1 Answer

What generates fuel injection pulse on a 1994 geo metro base model? I have replaced alternator, TBI injector, and ECU. Checked relays, fuel pump and filter. Feed and return line are clear. On startup I get...


The PCM (ECU does that) its part of what is called EFI, electronic fuel injection, it's a computer, that gets inputs, and uses those inputs to injector perfectly at ALL times.
what engine? 3cy. or 4? is it TBI injected or MPI injected
1 injector or 4? we need to know that first.
does it run on test fuel for 3 seconds.
when was last time it run perfect, last week last year. what?
first off stop guessing, you can go broke that way.
want to diagnosis it? the steps are easy. if fuel is good..
  1. fuses good.?
  2. CEL lamp glow keyon, if not ECU is bad. or bulb , it must glow.
  3. compression over 150PSI on all cyl. (w.o.t = wide open throttle)
  4. do a 60k, mile tune up yet, filters, spark,. and cam timing belt.?
  5. if not, why wait?
  6. 6: is spark good tall cylinders not just 1? is the timing way off if yes, the cam belt did slip, do not fiddle tiiming, fix the belt. first.
  7. ok it now magically runs on test fuel for 3 seconds and sounds great. so we do fueling last.
  8. fuel pressure tests are next. takes $20 gauge got one?
  9. ill stop here, as fueling tests are long play.l..... ask. if you can get to step 9,

I think all 94 metors are TBI engines, one injector
up to 1997 inclusive.
then the 1998 offered 4cyl, MPI injected engine.


have you learned how to use flash codes (DTC) yet?
insert jumper , key on, see CEL lamp glow and flash 12s'
the crank for 5seconds, see if the flashes go to 41 or 42?
bingo if yes.
the TBI allows the mech to watch injection, at the TB.
with top hose off. you can watch it inject as person 2 cranks.
does it?
the ECU brain cuts fuel at the first sign of:
  1. lost spark (to stop fires)
  2. lost Cmp sensor, same .
  3. TPS ground wire busted and ecu things foot is W.O.T (super secret unflood mode) (or TPS cracked in half inside)
or total loss of fuel pressure.

Mar 27, 2015 | 1994 Geo Metro

1 Answer

Intermitent dieing


metro, 1.0Liter>? 3cyl

or the LSI with the 4 cylinders.? TBI and not MPI

yours is TBI, One injector engine MPI came out in 1998.

your car has OBD2 computer so any scan tool will show

why spark is gone (if). (precursors ) cranked for 5seconds,



(what does has fuel mean? wet spark plug tips?)

got spark? it stalls and wont restart have half hour>?

intermittent engine stalling. seems starts cold and fails hot engine.



on all EFI, (besides a tune up) we check this.. (a full 60k tune up?)



1: if you loose 12vdc main power, at stall>? (dash lamps dim or die,

head lights dim or die? bingo!

no.

2: can you save the stall with a fast right foot?

a: easy (isc stuck closed?)

b: tad hard. (EGR main stuck open or or low fuel pressure)

c: impossible. (lost spark or near zero fuel pressure, 10PSI is no good.

which is it? and is #1 key to solving any EFI stalls !!!

3: lost engine compression say hot, never set valve lash ever? or cam belt slips or has slipped. ever do a 60k belt on cam, ever?



4: bad spark, weak, or dead, at fail, if spark timing is way off (check it) that mean the cam belt is bad and slipped. 60k mile service skipped.

5: bad fueling, (last) and the most complex.





that is the correct order, you can skip around but it only delays the discovery.

1 Bad DC power, 2 bad compression,3 bad spark 4bad fueling.

Example1:

you key on, and get CEL glowing, most likely the ECU has power

as that lamp tells you it has.

then you find its flooding, 99% are never tuned up, or lost spark

you check spark its gone, you check that cam spins (oil filler hole)

you connect scan tool and crank for 5seconds, the tool shows

CKP or CMP bad. the DTC error codes will tell you!!!

if spark is good, use the operators guide , for flooding

it says :crank at wide open throttle to clear foods"

it starts, and floods again. oops.

you check spark timing.and find the timing way off, retarded.

bingo the 60k belt slipped, fix belt.

you check compression (it should have been first) and find its 80psi

not 150 PSI (W.O.T)

belt slipped. (they all do , ignored, )



lets do one more,

: example.2

spark good,!

timing good on dizzy!

compression as spec. 150 x3 or 4.

it floods.

i find fuel pressure at 60PSI , 2 times spec.

i find the regulator bad, it fails all 6 tests in the fSM on this device.

or the fuel return line is clogged.

hope his helps. post engine size, and cyl. count.

and if ever tuned up this decade.

Feb 05, 2014 | 1997 Geo Metro

1 Answer

MY 1990 GEO DOESN'T GET FUEL


say how you know that?
1; INJECTOR dry. dont squirt.
2: fuel pressure 0 not 30 PSI.
3: can dont start.?
4: or the logic, sparks good,must be fuel (bad logic,if motor bad)
or?
how?

Dec 17, 2012 | 1990 Geo Metro

1 Answer

94 geo metro, cleaned egr valve and replaced gasket..still missing and losing power on acceleration any ideas?


O2 Sensors with over 100,000 miles on them

Dirty MAF Sensor

Old Spark Plugs

Ignition Problems

Blocked gas filter or blocked exhaust converter

Exhaust system leaks before converter

TPS Sensor

Sep 20, 2011 | 1995 Geo Metro

2 Answers

My 94 geo metro runs very rough and has


you should check a throttle body valve or purge valve, choke valve

Feb 14, 2010 | 1994 Geo Metro

2 Answers

Starts and dies on acceleration then will not run


crank shaft position sensor is most likely cause. Do check ignition and fuel pump relays with an ohmmeter to make sure they are not faulty. Check power to ignition module. You can also check crank sensor with the ohmmeter. Check all vacuum hose and also check throttle position sensor.

Nov 15, 2009 | 1995 Geo Metro

2 Answers

HC fails higher and higher with everything i fix


Many things can cause high emissions. Excessive HC means that too much unburned gas is getting through the engine and into the exhaust (gas is the hydrocarbon). The chief culprits for HCs are a bad catalytic converter, bad injector, excessive fuel pressure (usually caused by a plugged fuel pressure regulator), or bad sensors (especially temperature sensor). A catalytic converter will usually only make 100-200 ppm difference in HC emissions so it's not likely that it could cause your numbers by itself. Metros have an O-ring seal around the injector in the throttle body. Sometimes that goes bad which lets gas leak into the intake.

A good first step would be to check if there are any trouble codes stored in the computer. The EGR system lowers Nitrous Oxide (N2O) emissions so it's not your trouble.

May 26, 2009 | 1994 Geo Metro

1 Answer

Engine


I think the 97 uses a crank sensor where the 94 doesn't. (not sure) I don't see any reason you can't just leave it unhooked. I put a 92 engine in a 94 but because of the differences in the emission controls, I had to use the 94 intake and injection system. It worked out fine. Still driving it. Some advice, while you have it apart, clean the EGR valve and journals especially the ones going from the exhaust manifold to the EGR valve (driver side of motor). That is a common problem with these cars and it usually ends up ruining the engine. (My experience is with the 3 cyl model).

Feb 23, 2009 | 1994 Geo Metro

1 Answer

94 Automatic Geo Metro 3 Cyl. Map Sensor - EGR Valve


Unfortunately, both of these items are equally important and repairs can't normally be avoided by taking care of your car.

Your MAP (Mass Air Pressure) Sensor measures intake manifold vacuum pressure to help control the air and fuel mixture and timing. It contains a pressure-sensitive element that connects to an electronic circuit, generating a signal that changes with pressure changes in the manifold.

Your EGR (Exhaust Gas Recirculation) valve recirculates exhaust gases through the intake manifold to be burned again, cooling peak combustion temperature. Dilutes the air and fuel mixture to keep the nitrogen oxide emissions within breathable limits. And yes, it could very well be that the EGR solenoid that is causing the issue.

Both units effect your vehicle's fuel/air mixture. This is important because your vehicle running lean/rich can cause "snowball" problems. For example, a faulty EGR can cause the vehicle to run rich/lean. If not repaired, in time, the exhaust caused by the wrong rich/lean fuel mixture can damage the O2 sensors and/or catalytic converter.

If I had to pick, I'd start with your MAP Sensor. One guess I would have is that your MAP Sensor failed and made your vehicle start burning the wrong fuel/air mixture. Assuming I'm right, this could have damaged the EGR Valve. So, I see no reason to replace the EGR Valve alone, just so it too can be damaged by the poor fuel/air mixture caused by the still-faulty MAP Sensor. If your lucky, you may see the faulty EGR code disappear once your MAP Sensor is replaced.

Hope this helps and good luck!

Aug 18, 2008 | 1994 Geo Metro

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