slight misfire

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leesp38v8 said:
Ya could do mate. I think the leads have been on some time. What should it read on comp test?
Click to expand...


You should see 150 to 160 psi 160 is good

Lift the lid on the fuse box and withdraw the petrol relay and the petrol fuse, you will see the sign on the fuse box on mine its about five down on the inside track and 10 amp. You should be able to spin her over without it trying to start. Its best to take out all the spark plugs and do the lot in one go.
Spin her over for about five or six revolutions

If there is a problem one or normally two cylinders will be down. You should also look at the spark plugs as they come out if one (or two) is very different from the others you have the cylinder(s) giving spark/fuelling issues
 
Last edited:
leesp38v8 said:
Ya could do mate. I think the leads have been on some time. What should it read on comp test?
Click to expand...

You should see 150 to 160 psi 160 is good

Lift the lid on the fuse box and withdraw the petrol relay and the petrol fuse, you will see the sign on the fuse box on mine its about five down on the inside track and 10 amp. You should be able to spin her over without it trying to start. Its best to take out all the spark plugs and do the lot in one go.
 
nice one mate. I put new plugs in her about 2 month ago and old ones seemed ok. But will check these ones to. I just pickt up a compression tester of me mate so I will test it tomorrow night when engine is cold b for I come home from work. I will u all know. Cross fingers.my luck it will be f!*kt. Cheers guys
 
right then, dun a compression test and all looking good i had 160 psi in all 8, happy days so that rules that out i took out me plugs they r all the same colour and not wet or oil etc on them. so i just orded my magnacor leads i hope this helps my little misfire and i mean little misfire. 95 quid later...
 
just fired up me v8 in the dark and had a look at the ht leads and 1 of them is lighting up so thats were my misfire is coming from, problem solved, waiting for me magnacore leads now should be here monday, woooooppppppyyyyy
 
leesp38v8 said:
just fired up me v8 in the dark and had a look at the ht leads and 1 of them is lighting up so thats were my misfire is coming from, problem solved, waiting for me magnacore leads now should be here monday, woooooppppppyyyyy
Click to expand...

See post number 2....and £25 was all you needed to spend on set of OEM leads. Not disputing quality of Magnacore leads but the price doesn't warrant it.
 
i put me new Bosch plugs in mate and me new magnacore leads to day and wat a difference and i am been honist, a lot more torque and runs really smooth, all good. my old leads must have been on for years
 
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