Question about Cars & Trucks

Open Question

Could it be bad injector my sparplug is firing

Posted by on

  • Jim Dec 02, 2016

    Hi Jim mullins, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

×

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1990 eighty eight 3.8l. Why no fire/pulse to the injectors?


The camshaft sensor may be bad. Check the fuse for the injectors and it is possible the ECM is bad or the injector drivers more specifically are bad in the ECM .

Nov 24, 2015 | Oldsmobile Cars & Trucks

2 Answers

I have a Mitsubishi gallant cylinder number 1 not firing but spark plug is firing engine misfire,engine check comes on for it to start and it has a hard start help.


If you have spark, but no fire, then check injector for proper activation. If good, check compression. If injector good, and compression bad, possible head gasket, valve, piston, etc.

Jun 08, 2015 | Mitsubishi Galant Cars & Trucks

3 Answers

How to Connect sparplug wires in the correct fireing order?


The firing order is 1342 Number 1 should be marked on the distributor cap . start from there , notice the direction the rotor turns, next terminal on the caps goes to number 3 cylinder and so on. to find number one if the cap is not marked do the following. remove number 1 spark plug and turn engine over till compression is felt, line up the timing marks on the crank pulley and timing cover. remove the dist. cap the rotor is now pointing to number 1 position on the cap.

Oct 05, 2014 | 1992 Honda Accord

1 Answer

My 89 Grand Prix with a 2.8 just dies going down


Sounds like a bad fuel injector. Back in the day we would let them runout in the parking lot and when they stalled we would rip off the intake plenum as fast as possible and ohm check the injectors. They should be around 13 ohms. If they are significantly less, say 3 ohms, than those injectors are bad. This system bank fires the injectors. Meaning that all three injectors on the front back fire at the same time and all three of the injectors on the back bank fire at the same time. If one injector hoes bad it will shut down the whole bank which will stall the engine.

Sep 11, 2014 | 1989 Pontiac Grand Prix

1 Answer

The engine wont start after i replace the sparplug?


make sure they are all the way in the head and u have to get them around the gap that they need or they wont fire on time and the engine wont start cause the fire timing is off make sure the wires are all the way on to

Jan 26, 2013 | Cars & Trucks

1 Answer

My mazda 323 b6 injecters are firering at the same time anf the cars does not start


Listen for the fuel pump to turn on with the key ON. Do you hear it buzz on for a couple of seconds, and then shut off? If you do, the pump is working. If you don't hear it, the pump is bad or the wiring to the pump is not working. Check the relay.
Usually, on a four cylinder with multi-port injection, injectors 1 and 3 fire simultaneously, and then injectors 2 and 4 will fire at same time (because their ground wires are spliced together before entering the computer. When the computer internally grounds the wire, the injectors will pulse). Are you certain that all four are pulsing at same time? If so, that may be the Mazda way. But I think you are right to believe it is a fuel problem. Test the pump as stated above, key on (not start) and listen for pump to turn on.
Good luck.

Feb 09, 2012 | 1988 Mazda 323 Hatchback

1 Answer

I have a 1992 acura legend it's been sitting up for about three years replaced the fuel pump, fuel filter, spark plugs, injector resistor, ran compression check on all cyl. all above 150 psi. swapped ign....


Put a meter on the firing and non firing side on the injectors and see if the reading is the same. Sometimes a whole bank of injectors loose the pulse to inject. If this is what is going on you need to check all the fuses, and look for wiring harness grounds on the engine near the injectors. A bad connection, or a bad fuse can shut down one side of the engine. It is also possible the engine computer has lost a driver, and is bad, this also can shut down a bank of injectors. Most of the time problems like this are caused by bad connections. If a quick check of these mentioned items doesn't help then get a good service manual with a wiring schematic in it and start checking out the wires to see if there is a break in the wires.

Dec 18, 2010 | 1991 Acura Legend

1 Answer

My 2001 oldsmobile alero has a cylinder #4 misfire


The misfire can be caused by an open injector , injector pulg or circuit, bad spark plug ro wire lost compression as a burnt valve blown gasket ( antifrezze foulingthe sparplugs ) Low compression from overheating over mileage or flooding from injector leaking. Take out the number 4 plug and any other and compare what they look like if they don't look the same swich them and see if the miss moves to the cyclinder that the #4 plug moved to. If it does run good or misses on the new cyclinder change the spart plug with new and then look for loss of coolant or oil on plug wire carrect leak and try again

Mar 21, 2010 | 2001 Oldsmobile Alero

3 Answers

Good spark -- fuel supply line has fuel -- will not start -- either sprayed into air intake -- car immediately fires -- why are cylinders not getting fuel?


possibly a bad pressure regulator or injector module not letting the injectors fire. check out both more than likely the injectors are not firing.

Aug 30, 2009 | 1989 Buick Riviera

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

16 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...