check engine codes - Page 2 - Land Rovers Only

apbtpetey · 12-01-2006, 07:16 AM

Mike,

It was great to talk to you and I got some good info out of our talk.

I picked up the y-pipe/cats from Paul Grant last night (thanks again by the way if you are reading this). Dropped them off it off this morning at the shop and got to talk with the guy about it. He said he is stumped becuase one min it will start and run fine for him and then the next he says it like it has a big dead spot and doesnt want to stay running. He will replace the y-pipe and we'll see what happens from there.

Thanks again to those that have been helping me out it is great to have the resources we have on this site.

Badger1 · 12-01-2006, 12:58 PM

A failed MAF sensor will kill your cats if it is allowing the engine to run full rich. Try using some MAFS cleaner by CRC it works great and won't hurt anything! Used it on my 97 after running with the CEL on for months. Pried the mesh open just enough to get the spray tube into the air intake tube where the wires on the MAF are, and hosed it down. Been 3 and a half months just about and no lights and a much better running truck. Give it a try or get a used one, much cheaper. Although the used one I purchased was messed up too and needed the cleaning.

Paul Grant · 12-01-2006, 05:26 PM

John,
I'm picking up that '97 tomorrow. If you want, you can borrow the MAF from it and see if it makes a difference.
Cheers,
Paul

apbtpetey · 12-01-2006, 06:09 PM

Paul yeah that would be great. It seems like the problem wasnt the cats becuase after changing them it is still doing the same thing with the stalling and holding a steady idle. If changing the MAF works how much you want for it? When would be a good time to come pick it up?

Paul Grant · 12-01-2006, 07:58 PM

John,
If it solves your problem it won't be a tenth of what a new one costs. Give me a call on Sunday and we can arrange for you to pick it up.
Cheers,
Paul

apbtpetey · 12-02-2006, 06:16 AM

Paul sounds good,

and I truly owe you a bottle of scotch for your help. I'll call you on Sunday

Rovin4life · 12-02-2006, 11:25 AM

because you have only 1313 and 1314 with no corresponding cylinder number I would suspect that instead of having bad cats you have random misfires the computer doesnt know which side is which.

First and foremost check the fuel pressure with the vehicle off it isnt supposed to drop in theory. on an older car a bit of drop to around 32 isnt bad. but over the course of say thirty minutes it shoudl stabiliae. if not then clamp off both hoses and check for the same leakage. if its not occuring its the pump. if it is then its the injectors or the fuel pressure reglator. if you suspect the fuel pressure regulator use a vacuum pump to see if you get any change.

IF the fuel pressure is good then I would suspect that the issue might be from an air leak in the system. Smoke the upper intake with a smoke mahine to see any leaks. if not leaks then diepending on your vin It might be the fuel tank pressure sensor in the fuel pressure that is bad. The sensor wiring shares a wire with the tb sesnsor. if the connector at the tank sensor gets corrooded it can cause reandom misfires. It can also kill the sensor in the tank. take the tank cover off and inspect the wiring. it it green then clean it up and replace the connector pins. and put some dielectric grease in the connector to get it to work. but even then its not a guarantee.

apbtpetey · 12-03-2006, 02:43 PM

Thanks for the replys again. Hopefully I can this issue solved soon. I was just thinking about other possiblities for this well I am sitting here and do you think that maybe the coil pack could bad? what is the best way to test the coil pack?

Paul, I am sending you an e-mail now aboiut the MAF

apbtpetey · 12-06-2006, 07:22 AM

Well it is finally fixed. Appears when they changed the MAF out the codes went away and when they test drove it they said it was 100% back to normal. Thanks again to all those that have helped me and Paul I will send you a paypal payment for the MAF, just pm or e-mail your account and I'll do it tomorrow.

Paul Grant · 12-06-2006, 07:31 AM

John.
I am really happy for you! It's always such a relief when the cure is found. You can PayPal me at my email address below.
Cheers,
Paul

paulgrant@mac.com

apbtpetey · 12-06-2006, 10:39 AM

Paul i'll do the paypal tomorrow.

The stupid thing is actting up again on me. I left the shop and it was fine, then a few miles down the road the CE light comes back on and it idle is not steady. Then sitting at a stop light it stalled. Started right back up, but still stalled on me and the CE light is on. WTF why can this not be fixed. The shop cleaned the TB and went over the fuel system, but the problem is still here, they said the couldnt find any air leaks or vaccumm problems either.

Could it be a stepper motor

I am lost here

Paul Grant · 12-06-2006, 11:49 AM

John, I just spoke with my friend who works for Land Rover and he was wondering if there might be a problem in the wiring to the MAF which is causing it to short out the sensor. I'm waiting for him to call back with any other possibilities. Right now he has his hands full at the dealership!
Paul

Paul Grant · 12-06-2006, 11:55 AM

Check the crank sensor!!!

apbtpetey · 12-06-2006, 12:45 PM

Paul thanks for the reply and the help again. The shop said they checked the wires going to the MAF and they were okay.

What is the best/right way to check the crank sensor?

apbtpetey · 12-06-2006, 12:46 PM

Mike sent you an e-mail back

12-01-2006, 07:16 AM	#16 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Mike, It was great to talk to you and I got some good info out of our talk. I picked up the y-pipe/cats from Paul Grant last night (thanks again by the way if you are reading this). Dropped them off it off this morning at the shop and got to talk with the guy about it. He said he is stumped becuase one min it will start and run fine for him and then the next he says it like it has a big dead spot and doesnt want to stay running. He will replace the y-pipe and we'll see what happens from there. Thanks again to those that have been helping me out it is great to have the resources we have on this site. __________________ John Conklin LRO Moderator

12-01-2006, 12:58 PM	#17 (permalink)
Badger1 Forward! Join Date: Jul 2005 Location: Loo-eee-ville, KY Posts: 2,154 Gallery: 1	A failed MAF sensor will kill your cats if it is allowing the engine to run full rich. Try using some MAFS cleaner by CRC it works great and won't hurt anything! Used it on my 97 after running with the CEL on for months. Pried the mesh open just enough to get the spray tube into the air intake tube where the wires on the MAF are, and hosed it down. Been 3 and a half months just about and no lights and a much better running truck. Give it a try or get a used one, much cheaper. Although the used one I purchased was messed up too and needed the cleaning. __________________ 1997 Disco 1 2000 Disco 2 1989 RR(gone but not forgotten ) Miami Valley Land Rover Society www.mvlrs.com ON WISCONSIN

12-01-2006, 06:09 PM	#19 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Paul yeah that would be great. It seems like the problem wasnt the cats becuase after changing them it is still doing the same thing with the stalling and holding a steady idle. If changing the MAF works how much you want for it? When would be a good time to come pick it up? __________________ John Conklin LRO Moderator

12-02-2006, 06:16 AM	#21 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Paul sounds good, and I truly owe you a bottle of scotch for your help. I'll call you on Sunday __________________ John Conklin LRO Moderator

12-02-2006, 11:25 AM	#22 (permalink)
Rovin4life Former NAS LR TECH, Current AUS LR TECH Join Date: Oct 2005 Location: DOWN UNDER Posts: 1,859 Gallery: 0	because you have only 1313 and 1314 with no corresponding cylinder number I would suspect that instead of having bad cats you have random misfires the computer doesnt know which side is which. First and foremost check the fuel pressure with the vehicle off it isnt supposed to drop in theory. on an older car a bit of drop to around 32 isnt bad. but over the course of say thirty minutes it shoudl stabiliae. if not then clamp off both hoses and check for the same leakage. if its not occuring its the pump. if it is then its the injectors or the fuel pressure reglator. if you suspect the fuel pressure regulator use a vacuum pump to see if you get any change. IF the fuel pressure is good then I would suspect that the issue might be from an air leak in the system. Smoke the upper intake with a smoke mahine to see any leaks. if not leaks then diepending on your vin It might be the fuel tank pressure sensor in the fuel pressure that is bad. The sensor wiring shares a wire with the tb sesnsor. if the connector at the tank sensor gets corrooded it can cause reandom misfires. It can also kill the sensor in the tank. take the tank cover off and inspect the wiring. it it green then clean it up and replace the connector pins. and put some dielectric grease in the connector to get it to work. but even then its not a guarantee. __________________ I work on Rovers. Got a question just ask.

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12-01-2006, 05:26 PM	#18 (permalink)
Paul Grant Senior Member Join Date: Jun 2005 Location: CT Posts: 915 Gallery: 0	John, I'm picking up that '97 tomorrow. If you want, you can borrow the MAF from it and see if it makes a difference. Cheers, Paul

12-01-2006, 07:58 PM	#20 (permalink)
Paul Grant Senior Member Join Date: Jun 2005 Location: CT Posts: 915 Gallery: 0	John, If it solves your problem it won't be a tenth of what a new one costs. Give me a call on Sunday and we can arrange for you to pick it up. Cheers, Paul

12-03-2006, 02:43 PM	#23 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Thanks for the replys again. Hopefully I can this issue solved soon. I was just thinking about other possiblities for this well I am sitting here and do you think that maybe the coil pack could bad? what is the best way to test the coil pack? Paul, I am sending you an e-mail now aboiut the MAF __________________ John Conklin LRO Moderator

12-06-2006, 07:22 AM	#24 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Well it is finally fixed. Appears when they changed the MAF out the codes went away and when they test drove it they said it was 100% back to normal. Thanks again to all those that have helped me and Paul I will send you a paypal payment for the MAF, just pm or e-mail your account and I'll do it tomorrow. __________________ John Conklin LRO Moderator

12-06-2006, 07:31 AM	#25 (permalink)
Paul Grant Senior Member Join Date: Jun 2005 Location: CT Posts: 915 Gallery: 0	John. I am really happy for you! It's always such a relief when the cure is found. You can PayPal me at my email address below. Cheers, Paul paulgrant@mac.com

12-06-2006, 10:39 AM	#26 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Paul i'll do the paypal tomorrow. The stupid thing is actting up again on me. I left the shop and it was fine, then a few miles down the road the CE light comes back on and it idle is not steady. Then sitting at a stop light it stalled. Started right back up, but still stalled on me and the CE light is on. WTF why can this not be fixed. The shop cleaned the TB and went over the fuel system, but the problem is still here, they said the couldnt find any air leaks or vaccumm problems either. Could it be a stepper motor I am lost here __________________ John Conklin LRO Moderator

12-06-2006, 11:49 AM	#27 (permalink)
Paul Grant Senior Member Join Date: Jun 2005 Location: CT Posts: 915 Gallery: 0	John, I just spoke with my friend who works for Land Rover and he was wondering if there might be a problem in the wiring to the MAF which is causing it to short out the sensor. I'm waiting for him to call back with any other possibilities. Right now he has his hands full at the dealership! Paul

12-06-2006, 11:55 AM	#28 (permalink)
Paul Grant Senior Member Join Date: Jun 2005 Location: CT Posts: 915 Gallery: 0	Check the crank sensor!!!

12-06-2006, 12:45 PM	#29 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Paul thanks for the reply and the help again. The shop said they checked the wires going to the MAF and they were okay. What is the best/right way to check the crank sensor? __________________ John Conklin LRO Moderator

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12-06-2006, 12:46 PM	#30 (permalink)
apbtpetey Support Our Troops Join Date: Jan 2005 Location: Hudson Valley, NY Posts: 3,394 Gallery: 0	Mike sent you an e-mail back __________________ John Conklin LRO Moderator

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