He didn't do much. I wanted to get a second opinion and make sure engine compression was good. He said it's 150lb in each cylinder. He did say the car is bad. I just don't know which to start first. He says I have 2 cats and would have to cut them and replace. Have you ever had experience replacing your cat. Where is a good place to buy one. Could that be cause of all my issues

 

Looking To see what are the best spark plug, wires and suggestion anyone here is using.

Any help would be great

 

^^^^ this is Best 4X4 opinion (Edit...suggestion). Me, l'm not sure what type of plug l used...so l really can't recommend one.

Did your mechanic clear the codes? Some of those codes could be old ones and totally unrelated to your issue. If your mechanic had the plugs out to do a compression test, why didn't you have him throw new plugs in while he had them out?..and just finish a tune up while at it?

If l was your mechanic...l'd be asking a ton of questions...did this symptom come on all of a sudden or get worse over a long period of time? If it happen suddenly, did you get gas recently? Knowing the history of the issue and how it evolved helps. Without some sort of case history...we are all just throwing darts.

Brian.

 

It's not an opinion, it's a very well known fact that LR V8's DO NOT do well with Bosch Platinum, X2/X4, or any Bosch Plug that has the tip of the electrode surrounded by the ceramic insulator. They will foul very quickly leaving you with misfires.



I think there is a Bosch Double Platinum/Iridium Plug that has the electrode sticking out like normal, but I still HIGHLY recommend NGK Platinum/Double Platinum/Iridium plugs or Autolite Platinum/Double Platinum/Iridium plugs. NGK's were even the OEM plug on the LR3/RRS.

 

History. My brother had the car and rarely drove it bc he had a comapny car. So the car sat for a long time. Not much major repairs a couple of tune ups. I started working on it as a project car and to learn how to work on cars. I didnt have the mechanic replace the plugs or do the tune up as I change them out before. I will order the plugs you suggested and clean MAF in about a week when I return will change them out. I checked a couple of other places on the CAT replacement which is very expensive for my pockets right now was quoted 600-1100 to replace both Cats. I will keep you posted. Thanks again for all the assistance.

 

I would not bother with the cats until l figured out the codes. Like l said before, have someone clear the codes, drive it and see what ones come back...then repair those issues first. Did you try the injector cleaner that was recommended in post #10 by Gerry? You've got multiple misfire codes, could be bad/plugged injectors...or bad fuel.

You say the rover sat for a long period of time, have you ever driven it since getting it from your brother (and it ran good)...or did this all happen since you started messing with it (and it's never ran right from the get-go)?

Brian.

 

It was like that before I got it. Trying to get it better. I haven't done anything besides the tune up wires, spark plugs, and coil pack. Plan to replace spark plugs, clea n MAF and injector cleaner. Sorry for the delay had to work on my main truck. Hope to do some of the things this MAF and Injectors. Will keep everyone posted.

 

Looking at you suggestions on plugs they have Autolite XP3924 Iridium Enhanced center electrode or NKG 3764 Iridium IX OR NKG 6741 Laser Iridium. Which is better?

 

 

I just wanted to Thank you again for all you guidance. I put the Autolite's in this weekend and cleaned the mass air flow. Cleared the codes. Took the old gurl around the block at top speed. No hesitation on startup full of power. Will go on the highway in a couple of days have to put the plates on the car. But you all Rule. Great Job again