Question about 1983 Alfa Romeo Sport

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Alfa i have recently changed spark plug lead and noticed that leads where on different from what is on the ignition system but the car still runs ok does it matter Cheers

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Well it may run and all but it could be mis-firing and would degrade performance. I would make sure to put all the wires on in the correct order.If it runs fine, then it might all be on right after all but if any are in the wrong place, you would notice but not to much considering it is a four cylinder, sometimes you never notice a mis-firing cylinder. Point being is the wires do need to be in the right order for the car to run smooth and correct. Hope this helps.

Posted on Jul 27, 2008

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1 Answer

I had the sparks plugs change and the ignition coil change but still skipping


Could be Distributor Points,
Quick clean with fine file or wet&dry to see if it makes a difference.
Could be Capacitor (Condenser) across points. Distributor Cap, could be cracked or have a HV carbonised track.
Distributor Rotor Button or individual HV leads to spark plugs. Check HV leads with Ohms scale on Multimeter. Or swap lead with one of the others. Or substitute HV Lead one at a time to determine if missing spark.
Process of elimination from easiest to hardest unless you have the knowledge & tools.
Good Luck

Feb 03, 2016 | Cars & Trucks

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I drive a 95 toyota 4 runner.I would like to know the right way to check my sparkplug wires if working p roper.


You can fabricate a tester from a 6 inch long mongol pencil. Sharpen one end and drill a 1/8" hole in the middle. Now remove the sparkplug wire from each sparkplug and insert the pencil onto the sparkplug wire with the dsharpened end connected or touching the ground or any metal part of the engine. Start your engine and you should see sparks jumping on the drilled hole on the pencil which indicates that your spark plug wire is okay.

Nov 09, 2014 | Cars & Trucks

1 Answer

Initial start up the engine sounds like its running on 2 cylinders under powered intil the temp gauge reads normal ???? any body got the answer please


Cold starting misfires can often be caused by either tired high tension spark plug leads or ignition coil packs. If replacing leads, then replace with a full, new set. Coils can be changed individually, but it is often the case that if one has failed, then the others aren't far behind. Some cars have individual coil packs on each spark plug. Some cars have a single pack for all plugs and some have coil packs which may control two or more plugs.

To check for a misfire (ignition failure) follow these steps:

(Cold start) (Use a pair of insulated pliers)

1) Start the vehicle

2) When the vehicle starts misfiring, disconnect plug leads or coil pack connections one at a time. If the vehicle idles even more roughly, then that plug or pack should be considered fine.
Replug each connection before disconnecting the next one. Once you disconnect a plug lead or coil pack connection and find no difference in poor engine running, then you have likely found the offending cylinder. Check the spark plug condition, lead and/or coil condition and connections on that cylinder.

3) Replace components as necessary.

Oct 12, 2014 | Cars & Trucks

2 Answers

When to change ignition coil on dodge caliber


When it no longer provides a spark to spark plug

Aug 04, 2014 | 2007 Dodge Caliber SXT Sport Hatchback

1 Answer

HT lead - Sparking


No it is not normal. as you noticed the blue spark is coming out on the spark plug connection with the HT lead,where a metallic cover is covering the lead. to have the sparks means that you have a broken lead and is earthed with the metallic cover. Shortly you will have unsteady idle and engine running due to this. Change your HT leads as soon as possible.

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2 Answers

Mazda Eunos 500 - Engine lacks power - investigation reveals strong sparks on all cyls fuel at all cyls compression to specification on all cyls timing ok. Removing spark plug lead on cylinder one makes no...


You said compression is good then i would say you may have a bad coil , unless one coil runs all cylinders, but could still be a coil,,next thing i would check would be the injector make sure it gets a pulse if it does then try switching injectors from that cylinder to another cylinder and see if the weak cylinder changes with the injector change, if it does then you have a bad injector,

Jun 14, 2010 | Cars & Trucks

1 Answer

During damp weather the engine light comes on, car runs rough at first then runs ok and within a day or two the engine light goes off


check spark plugs, leads if fitted or ignition coils sounds like spark is "jumping" due to poor insulation, cheapest option is to try plugs first then leads( if fitted) if it is induvidial coils, wait untill engine is running ok then spray water on each coil in turn and not the effect

Jun 04, 2010 | 1990 Mazda MPV

2 Answers

Where is distributor located1995 960 6cyl


hi, if you follow the leads that come from the top of the spark plugs where all these leads plug into is the distributer their will be four leads running along the outside going to each spark plug then the lead that goes into the center of the distributer goes to the coil.

So if you follow the four ht leads from the spark plugs what these all plug into is the distributer, if you are removing the distributer then make sure you mark where each lead goes as you need to put them all back in the right place.
Its best if you mark say the first lead with a 1 and then write a one onto the distributer where that lead goes into use permanent marker pen to do this so it dont rub off. getting the leads the wrong way round will mean the car will either miss fire or not run at all so just keep it all marked up properly.

Let me know how you get on or if you need further assistance ok

Nov 06, 2009 | 1995 Volvo 960

1 Answer

How do i change the spark plugs on a 2003 kia rio


INSPECTION

1. Disconnect high-tension code from spark plug.
2. Remove the spark plug.
3. Connect the spark plug to a high tension code.
4. Hold the spark plug with insulated pliers 5~10mm from a ground.
5. Crank the engine and verify that there is a strong blue spark.
If there is no spark, inspect the following points.

Step Inspection Action

1 Check for good connection of ignition coil Yes Go to next stop.
No Repair or replace
2 Check if resistance of high-tension leads are OK Yes Go to next step.
No Replace
3 Check if the ignition coil is electrically charged
1) Ignition switch "ON"
2) Check if the engine coil (+) is electrically charged
Yes Go to next step
No Check the wire harness between ignition switch ignition coil and ECM
4 Check if resistance of ignition coil is OK
Resistance
Primary : 0.36~0.44Ω (at 68°F (20°C))
Secondary : 10.9~13.3kΩ (at 68°F (20°C)) Yes Go to next step
No Replace
5 Check if ECM is OK Yes
No Replace

REMOVAL

Do not attempt any maintenance on spark plug if engine is hot.
1. Disconnect negative battery terminal.
2. Carefully remove high-tension leads.
3. Use compressed air to blow any dirt or debris from around spark plug hole.
4. Check that spark plug fits squarely in spark plug socket and remove spark plug.

Raise a vehicle and install SST(OK552 131 001) in order to replace cylinder 2, 4, 6 spark plug.

INSTALLATION

1. Install spark plug into cylinder head.

Tightening torque : 18~22lb-ft (25~30N·m, 2.5~3.0kg-m)

2. Reconnect high-tension leads.
3. Reconnect negative battery cable.

Jul 17, 2009 | 2002 Kia Rio

1 Answer

Running problem plugs and leads


the longest lead goes 2 the furthest cylinder, as they get shorter move back towards the distributor!!! all the leads are different lenghts! check the plug lead on the coil at the shock mount as it gives problems!!

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