Question about 1997 Geo Metro

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97 geo has spark, fuel to tbi no fuel from injector, injector has power

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  • Geo Master
  • 20,706 Answers

Old post.
metro , what engine, size?
answser
fuses check all fuse with a meter. !!! first. not last like 10,000 answers here.
the inectors go hot key on, if not the fuse is blown
the CEL dash lamp in the cluster must glow key on or the ECU is dead. (fuse)

Posted on Apr 21, 2014

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Posted on Jan 02, 2017

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duane_wong
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SOURCE: my 1992 geo tracker wont

fuel to the tbi, but no power to the injector means the wiring or the computer is bad and won't fire the injectors.

Posted on Oct 31, 2010

  • 5317 Answers

SOURCE: 97 geo 1.3 intermittent start

If it starts with starter fluid, there is nothing wrong with the ignition, so `the sensor query is not applicable. It is a fuel starvation problem. You say no fuel from pump and pressure good, which is it? If the pump isn't working, it can't build pressure. If the pump is working and it does have proper pressure, you may have a problem with the injector circuit not working. Post back with your answer. I'll try to help you solve it.

Posted on Jun 10, 2012

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My 1993 Geo tracker fuel systen is not working, the injector is not spraying. now it is sprayin on the inside of the carborator and filling the carborator up.. how do i fix this problem//


there is no CARB on this car.
that must be the throttle body engine, TBI EFI.
1 injector engine not the 4 MPI engine.
G16a is TBI G1b is TBI and both sold day 1 , new.
its is supposed to spray, but you forgot to say when.
just key on over and over not running, (not spray is correct)
it sprays cranking and running,, that be its job1.

lets say it sprays key one.
That means:
1: injector leaks.
2: injector - o-rings are bad. (cracked)
3: ECU injector drivers shorted (bad ECU)
you can look at the inject on this car, air pipe off TBI horn.
see if the seals leak or injector tip leaks ?
if the injector actually leaks.
unplug the injector connector (4pin plug)
leak now.
yes, injector is bad or just o-rings
no, the ECU is bad. (common on this car)
i can even tell you which transistors are bad.... etc.....ask.

both engines covered here.
http://www.fixkick.com/INJECTORS/injectors.html

Dec 09, 2015 | 1993 Geo Tracker

2 Answers

1993 Geo tracker fuel injector is not working right. i have to pour fuel into it. any suggestions on what i should do?


Important to know if it's not working at all, or if it is working some, just not enough? If not at all, then you need to check the injector wiring circuit, it's pretty simple really, just a hot wire with key on, and a ground wire that goes into the engine computer. Test with a voltmeter, best practice.

You should probably first check fuel pressure. The injector won't work unless the fuel pressure inside it is at the specified pressure. If the fuel pressure is too low, you have a bad fuel pump or a clogged fuel filter. If the fuel pressure is correct, you could have a clogged injector. The best way to clean that is with the injector off the engine.

Dec 09, 2015 | Geo Cars & Trucks

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

How many ohms should the fuel injector check?


TBI 8v engine is 1 ohm
MPI 16v has 4, injectors, and all read the same 10 ohms.
there are lots of test.
ohms
presssure
flow
and leak down test.
and a balance test

http://www.fixkick.com/INJECTORS/injectors.html

Sep 27, 2014 | 1994 Geo Tracker

1 Answer

What is the fuel flow path for 1994 geo tracker


16valve or 8v, night and day diffr.
answers
  • from station island hand pump to tank, LOL @!
  • from tank to injectors.?
but both are here.
see the graphic drawings at end of page
TBI and MPI

http://www.fixkick.com/INJECTORS/pump.html

May 28, 2014 | 1994 Geo Tracker

1 Answer

Injector not fireing


you have a TBI 8valve engine. just like my 91
the injector , not firing, so by guy method.
1: it dont click? (sonic ,stethoscope)
2: the noid dont flash. (use a noid lamp and win)
3: it dont squirte, watching it with eyes, cranking,

if the noid fails, that means ECU is bad or one of 3 inputs to ECU are dead.
if noid works, that means, the injector is cogged, it has 10 micron screens that are easy to clean. or there is no 35 PSI fuel pressure.

here is the page just for that.
  1. THE ECU IS PROGRAMMED to cut fuel if there is no spark preventing TV like crashes and burns. (and other fire reasons)
  2. the tests are all easy. no order but #1 is #1
  3. fuel pressure at spec.
  4. injector coil reads 1.0 OHMS.
  5. injector clean. (there is only one, so all hope is just here)
  6. noid lamp fails , so is CMP dead? or TPS TP pin stuck high or , ecu throwing code 41./42s errors, BINGO!

http://www.fixkick.com/INJECTORS/injectors.html

or no starts

http://www.fixkick.com/INJECTORS/injectors.html

May 06, 2014 | 1992 Geo Tracker

1 Answer

97 geo has spark, fuel to tbi no fuel from injector


double posted, back up one.
older post but not that , old.

Feb 13, 2014 | 1997 Geo Metro

1 Answer

Does ignition module control fuel


there is no such model on this car.
this car has EFI, in 1992 , the 8 valve has TBI injection and the 16valve G16B had MPI (4 injectors)
both engines the ECU, creates spark at all times.
the input to the ECU is CMP /CKL cam and crank sensors
then the ECU computes ADVANCE and then drives the ignitor
next to the Ign coil. the coil charges and the ECU release this
charge and BAM , mr. Tesla inductive spark. hits the DIZZY.
that is how spark works.

the ECU controls fuel not spark , or better the ECU controls
spark INDEPENDENTLY from fuel;. (with exceptions)
exceptions:
or are you asking about the fuel safety feature built in to all EFI
cars 1988 too now? that is the ECU does monitor Spark
and CMP and CKP and does in fact cut fuel, when the ECU
sees spark missing, yes. It cuts the INJECTORS !

as does , wide open throttle cranking cuts fuel. (injection)
and fuse is (fuel pump) cut after 3 second key on, unless you crank it or runs.

see block diagram here.
http://www.fixkick.com/ECU/EFI.html

Jan 27, 2014 | 1992 Geo Tracker

1 Answer

Where is the fuel rail located on a 1995 geo prizm ?


ok a joke, cant resist: sorry,,,, keep a smile!
under the hood?
above the 4 injectors? LOL im still joking but is true.
My best PRIZM post yet (working up to better soon)
now the straight skinny? no joking..
this Toyota in sheep's clothing has more than one engine option.
infact 2, (wiki, the Geo prizm and see that ) see gen 2.
the one time, there is no rail is if the car has TBI
throttle body injection, (ours is not)
if in USA and not Canada.? you never said,
EPA force (USA) the 1.8L the 7A-FE (toy engine)
I think this is a 4 injector MPI engine. Not TBI, see link.

I do not know what GM (Geo) changed on that 7A motor.
about 1995 all TBI was banned here. (dirty smog)
(did geo run custom ECU's , i think not, but may run custom tuning "ecu tables") i metion all this for when buying used parts.
Toy<>Geo
so how to tell?
open hood, see intake manifold
see those runners, see them go to the head?
just before those runners contact the head,are INJECTORS x4
and above the injectors is the common rail.

if Geo works out like most of my experience with them.
they used all the toy parts, engine and EFI. and ECU.
so studying this would help.

wiki quote.
In the United States, the 7A-FE's most common application was in the 1993-1997 Corolla (7th generation).

google image seach nets.
http://www.toyoland.com/images/7A-FE.gif

see right view> see upper left side of engine
see that black air path. just end of tunnel, is the injector x4
and rail above that.
alldata dot com has all this.
free , try here.
heck even post. Gen2 GEO = Gen 7 toy
http://www.toyotanation.com/forum/133-corolla-forum/

Oct 14, 2012 | 1995 Geo Prizm

1 Answer

My 1992 geo tracker wont start there is a relay ticking with ignition onhas fuel to tbi no power to injectora


fuel to the tbi, but no power to the injector means the wiring or the computer is bad and won't fire the injectors.

Oct 31, 2010 | 1992 Geo Tracker

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