Question about 1988 Porsche 924

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Engine Won't Start...Fuel Injectors Not Spraying.

I've checked fuel pump (works properly). I'm getting spark. Fuel Injectors do not spray...volt meter not showing any electrical power going to injectors. I am assuming it is an electrical problem, but even if so how would I fix such a problem?

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6 Suggested Answers

taztheman042
  • 19 Answers

SOURCE: no petrol geting throuh injectors

either your not getting power to your injectors, they could be plugged.... there is a diod you can buy at an auto parts store to test for power at the injectores or you may have to get the injectors cleaned or replaced

Posted on Jan 25, 2009

blueextc3221
  • 15935 Answers

SOURCE: We have a 2000 Chevy S-10 pick-up,that wont start.

Have you put the car on an OBD scanner to see if there are any errors present. Even if there is no CEL light - the bulb could be burned out or removed.

Injectors require (acidic) pressurized equipment to clean.
This is not really an option open to the do-it-yourselfer because it requires special equipment that can cost anywhere from $4,000 to $8,300. Because of that and the labor involved, a shop may charge you $40+ per injector for removal and cleaning. (Makes you long for the good old days of carburetion, doesn’t it?)
But it’s a lot cheaper than spending at least twice that to replace ruined injectors with new ones, which is what happens when an injector becomes hopelessly clogged. And injectors can be tested, observed, and compared off the car. An injector that’s not passing as much liquid as the others can be re-cleaned. If that doesn’t work and the injector must be replaced, the injector that needs to be replaced is easily pinpointed.
When cleaning injectors, fuel varnish should also be removed from the throttle body and intake tract with an aerosol cleaning solvent. Intake valves and combustion chambers should also be cleaned using a “top cleaner” type of product, especially on engines that burn oil. Replace the spark plugs after performing any kind of engine cleaning; also change the oil and filter.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Posted on May 18, 2009

jagjeffery
  • 316 Answers

SOURCE: throttle body injectors not fiering but there is fuel pressure

the injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up

Posted on May 31, 2009

dmsr63
  • 2050 Answers

SOURCE: Fuel injectors not getting power (1990 GMC Jimmy 4.3L)

Computer maybe, but it's not the most common failure. There is a hall switch and a "pole piece" on the shaft of the distributor just under the rotor. The ignition module just to the side of them usually affects spark. Sometimes it's easier to swap the distributor assembly if you know the procedure.

Posted on Sep 03, 2009

Testimonial: "Thanks alot man, really helpful for sure!"

Exhaustking
  • 43 Answers

SOURCE: fuel injectors spraying to much gas

to be honest, with an 89, all you can do is replace the injector. how an injector works is there is a small amount of current that is run to a coil around a rod (if you are unaware, this produces magnetic fields). the magnetic field produced pulls up what is usually a small ball, allowing fuel to go through the tip of the injector nozzle. all you can do to fix this is to buy different injectors.

just a question..why do you think they are spraying too much fuel? because it may just be that you have excessive fuel pressure and your fuel pressure regulator is bad. hit me back.

Posted on Jan 02, 2010

Testimonial: "fuel pump regulator it keeps on flooding"

  • 215 Answers

SOURCE: 1983 porsche 944 runs for 10-15 min then stalls

get an alternator test

Posted on Feb 21, 2010

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If it doesn't start with starting fluid, check the spark. Pull a plug wire and attach it to a spare sparkplug and set the plug on a solid metal part of the engine. Have a helper crank the engine while you watch the plug. If you have a good spark, it might just be out of timing.

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