Question about 1993 Chevrolet Lumina

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93 lumina runs great then falls on face fuel pressure good new injectors tried ecm no codes

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Could be a clogged catalytic converter if you can only go so fast and it seems to be getting worse. Try driving with the 02 sensors out. It should go faster if clogged

Posted on Nov 13, 2009

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Posted on Jan 02, 2017

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Where is the fuel injector relay on a 2004 vw gti 2.8 liter 24 valve 6 cylinder?


check the immobilizer as it may be preventing the ECM to allow fuel past the injectors
run the fault codes and it could be the ECM needs resetting using a scan tool

Mar 13, 2016 | Cars & Trucks

1 Answer

Intermittent fuel delivery problem. 93 Chevy Lumina APV 3.1L with throttle body fuel injection.


year/make/model/engine size??? Do a fuel pressure test to see what the pressure is. Low/no pressure= poor spray

Nov 08, 2015 | Cars & Trucks

1 Answer

94 5.7 falles on face boggs down then clesars up a little runs nlike junk. good cap and rotor plugs wires and new fuel pressurs regulator filter what am i missing ?????????????????? HELP


Incorrect timing? Weak spark (coil)? Low fuel pressure (restricted filter, fuel pump)? Incorrect spark plugs ? Low compression? Worn out camshaft (insufficient lift)? Spark advance (ignition module)? ECM?

Dec 28, 2013 | 1995 Pontiac Grand Am

1 Answer

Have 93 Lumina sat for a year now won't start and seems to have no fuel pressure. new battery turns over fine but doesn't seem to want to fire either. Ran great when i parked it. WTH??


older cars need to be run alternators sieze up fuel pump gets gummed up .the gas is probably bad so this will make it have no pressure

Oct 05, 2013 | 1999 Chevrolet Lumina

1 Answer

Hot spark, good fuel pressure, but no injector pule


Be sure to check the injectors for a short. I found #1 injector bad when I disconnected the harness from it and the engine fired up. An ohms check verified the short, should be about 12 ohms, mine was 2 ohms. I also saw a response that indicated that the ECM controlled the injectors on the positive side of the harness. This is in error. The ECM controls the injector by grounding the negative side with a quad driver.

Jul 26, 2012 | 1991 Chevrolet Lumina

1 Answer

1992 Lumina Euro 3.1 MPI, what tells the injectors to shoot gas? Not getting the proper fuel through the injectors and the proper time.


The ecm (electronic control module ) operates the injectors. But their are many inputs that send information to the ecm for it to decide when and for how long to operate the injectors (it opertaes the injectors by actually providing a ground to the circut) .What makes you think its a fuel issue, do you have good fuel pressure...

Aug 24, 2010 | 1992 Chevrolet Lumina

3 Answers

I have a 1992 chevy lumina z34, its not getting fuel to the injectors or the injectors or opening. I have fuel pressure. up to where you check for pressure on the fuel rail. it just died when I was driving...


Have you checked that engine oil level is okay, if so check that oil pressure switch is good. The switch is usually bypassed to start the engine, but it won't run with no oil pressure indicated...hope this helps

Oct 07, 2009 | 1992 Chevrolet Lumina

6 Answers

93 chevy lumina euro won't stay running


if you can check for spark when it wont start and fuel pressure and the service port , would be great information , otherwise pattern failure is ignition module and crank sensor (replace them as a set) , after cools off it will run again.

Dec 31, 2008 | 1993 Chevrolet Lumina

1 Answer

2005 PT Cruiser 2.4


I think it sounds like your CAM sensor has fallen off or is faulty.

The computer controls the ignition timing and the injectors to squirt fuel in to the pistons at the right time. If the computer doesn't sense the cam angle correctly as you accellerate it can't put fuel into the pistons to match the opening and closing of the valves.

If you have a manual you can strip down the top of the engine to see the timing gears on the end of the Cam shaft and see if you can see the cam sensor and if there is anything obviously wrong (i.e. its missing) but you may be as well getting to the dealer to have it checked out and fixed. So the good Fuel pressure will not really effect the engine falling on its face as its a computer timing issue caused by bad sensor information that's causing the bad running.

Jul 02, 2008 | 2005 Chrysler PT Cruiser

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