rav4rob72
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Posts: 11
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Post by rav4rob72 on Jun 20, 2023 19:23:02 GMT
Hi,
Newbie here, looking for help, before my brain melts.
Picked up a RAV4 D4D 2.2L Mk3 2008 with the P0400 fault. Its not the EGR valve, EGR cooler, channel in the head from cooler to EGR or the intake manifold etc. These have been clean and thought I found the issue because inlet manifold was so choked I'm stunned it ran, but nope fault code still there. It sometimes comes up with C1201 and C1280, is ABS and 4X4 I think.
When the fault appears the EGR valve opens and closes at idle continuously. When connected to the multimeter the EGRS (white) voltage jumps from almost 0 to battery voltage. if you unplug MAF the pulsing stops and voltage is steady and battery output.
Thanks in advance
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jun 22, 2023 16:36:44 GMT
Update!
Brown ground wire from EGR has a bad ground or short.
If I take out the EGR and attach it another good ground all is good, but put them on the same ground and fault with the EGR constantly opening and closing returns. The problem is I can fix the ERG and all seems good, but there an issue with the ground for the other components that's in the circuit!
Anyone have anything similar?
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Post by Ravasher on Jun 23, 2023 5:55:45 GMT
Hi, hopefully one of the more experienced members will be along hopefully to offer any advice as I have zero knowledge on mechanics.
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Post by jasehutch on Jun 23, 2023 6:34:58 GMT
Hello and welcome to the club 👍
Sorry but I can't help as my Rav was earlier than yours.
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jun 24, 2023 14:27:26 GMT
Hi, Thanks for getting back!
Honestly brain is mush, but the new EGR valve that was fitted maybe wrong, which is a pain due to the strip down looking for a bad wire. Anyway hopefully wrong and I just need to find a break in the wire.
The EGR valve that's fitted is the Febi Bilstein 170613, which is apparently only compatible for the (ALA30) 2.2 D4d 16V - 130 kW / 177 hp and the one apparently for mine is the 170642 (ALA30) 2.2 D4d 16V - 100 kW / 136 hp version. They do have the same generic oem number, which is a bit unfair.
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Post by charliefarlie on Jun 24, 2023 14:46:19 GMT
Hi, Thanks for getting back! Honestly brain is mush, but the new EGR valve that was fitted maybe wrong, which is a pain due to the strip down looking for a bad wire. Anyway hopefully wrong and I just need to find a break in the wire. The EGR valve that's fitted is the Febi Bilstein 170613, which is apparently only compatible for the (ALA30) 2.2 D4d 16V - 130 kW / 177 hp and the one apparently for mine is the 170642 (ALA30) 2.2 D4d 16V - 100 kW / 136 hp version. They do have the same generic oem number, which is a bit unfair. The original EGR was/is very restrictive so much so many point the finger at that component for the engine replacement saga that started around 2008 and still goes on to this day. Any replacement EGR you buy will be a copy of your existing one. They are actually really easy to remove and clean and they do need regular cleaning or fault codes will pop up and your car will drink fuel. There really is no gain from replacing in essence what you have it just needs cleaning really well. If your inlet manifold is blocked your going to have to remove it and clean it or replace it. If you run the car with a blocked EGR and Inlet manifold the result will be what Toyota called Carbon stamping. This unfortunately can leat to the head gasket failing and in todays marketplace an uneconomical repair. The other really very important thing is to put quality fuel in the tank. Avoid supermarket fuel altogether and put either premium diesel in or use an additive from Archoil or Millets to raise the standard ( Forecourt NOT supermarket) diesel up to the standard of the expensive stuff. I use Archoil or Millers depending on which is on offer. Engine oil should be C2 lows SAPS which is low ash. Those who do the above get hardly any problems and trust me it’s worth doing. |
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jun 24, 2023 20:41:35 GMT
Hi, Thanks for getting back! Honestly brain is mush, but the new EGR valve that was fitted maybe wrong, which is a pain due to the strip down looking for a bad wire. Anyway hopefully wrong and I just need to find a break in the wire. The EGR valve that's fitted is the Febi Bilstein 170613, which is apparently only compatible for the (ALA30) 2.2 D4d 16V - 130 kW / 177 hp and the one apparently for mine is the 170642 (ALA30) 2.2 D4d 16V - 100 kW / 136 hp version. They do have the same generic oem number, which is a bit unfair. The original EGR was/is very restrictive so much so many point the finger at that component for the engine replacement saga that started around 2008 and still goes on to this day. Any replacement EGR you buy will be a copy of your existing one. They are actually really easy to remove and clean and they do need regular cleaning or fault codes will pop up and your car will drink fuel. There really is no gain from replacing in essence what you have it just needs cleaning really well. If your inlet manifold is blocked your going to have to remove it and clean it or replace it. If you run the car with a blocked EGR and Inlet manifold the result will be what Toyota called Carbon stamping. This unfortunately can leat to the head gasket failing and in todays marketplace an uneconomical repair. The other really very important thing is to put quality fuel in the tank. Avoid supermarket fuel altogether and put either premium diesel in or use an additive from Archoil or Millets to raise the standard ( Forecourt NOT supermarket) diesel up to the standard of the expensive stuff. I use Archoil or Millers depending on which is on offer. Engine oil should be C2 lows SAPS which is low ash. Those who do the above get hardly any problems and trust me it’s worth doing. Thanks for getting back. I got the Rav4 about a month ago, which came with the fault. It had a new EGR fitted November last year which didn't cure it, and the car got parked up and forgotten about. I've tested everything and it all comes back to the EGR valve. The data, which I've put on a spread sheet suggest MAF, MAP, Throttle body are all sending data, but EGR valve just stops sending data when the P0400 happens. The EGR continously opens and closes, which its doing it by its self. |
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Post by charliefarlie on Jun 25, 2023 8:10:55 GMT
The original EGR was/is very restrictive so much so many point the finger at that component for the engine replacement saga that started around 2008 and still goes on to this day. Any replacement EGR you buy will be a copy of your existing one. They are actually really easy to remove and clean and they do need regular cleaning or fault codes will pop up and your car will drink fuel. There really is no gain from replacing in essence what you have it just needs cleaning really well. If your inlet manifold is blocked your going to have to remove it and clean it or replace it. If you run the car with a blocked EGR and Inlet manifold the result will be what Toyota called Carbon stamping. This unfortunately can leat to the head gasket failing and in todays marketplace an uneconomical repair. The other really very important thing is to put quality fuel in the tank. Avoid supermarket fuel altogether and put either premium diesel in or use an additive from Archoil or Millets to raise the standard ( Forecourt NOT supermarket) diesel up to the standard of the expensive stuff. I use Archoil or Millers depending on which is on offer. Engine oil should be C2 lows SAPS which is low ash. Those who do the above get hardly any problems and trust me it’s worth doing. Thanks for getting back. I got the Rav4 about a month ago, which came with the fault. It had a new EGR fitted November last year which didn't cure it, and the car got parked up and forgotten about. I've testedth everything and it all comes back to the EGR valve. The data, which I've put on a spread sheet suggest MAF, MAP, Throttle body are all sending data, but EGR valve just stops sending data when the P0400 happens. The EGR continously opens and closes, which its doing it by its self. It could be the manifold is blocked as one of your comments above also suggests. Does your car burn oil ? Are there any water marks at the outlet on the header tank ? IE water spitting out ? Is you car using a lot of fuel ? Take a look at this link which I wrote about 12 years ago . forum.rav4driversclub.com/thread/69/charliefarlies-guide-diesel-series-engines Your car can throw up a variety of codes which can mislead. Unfortunately this engine thing started 14 or 15 years ago and Toyota used to sort it but the so called “ good will “ warranty expired many years ago and the problems still persist . Of course I could completely wrong It’s not easy diagnosing online. I’m reading between the lines here. |
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jun 25, 2023 11:26:23 GMT
I'll get a good look at that thanks!
Cleaned intake manifold,EGR & manifold ports, EGR cooler, DPF, Throttle body, inter cooler, MAF, MAP and replaced all vacuum pipes. OH and wires so many wires checked and good. ECM seems to be all good too!
I use Mannol/Shell oils and shell fuels always.
The oil that was in it was shocking and not quite sure if I've seen worse! I did a oil and filter change and ran it for 20 miles and the new oil was so black i changed it again and will do it again with new filter once ive got it sorted and did a few more miles, so the new oil in can do its job!
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Post by charliefarlie on Jun 25, 2023 11:40:20 GMT
I'll get a good look at that thanks! Cleaned intake manifold,EGR & manifold ports, EGR cooler, DPF, Throttle body, inter cooler, MAF, MAP and replaced all vacuum pipes. OH and wires so many wires checked and good. ECM seems to be all good too! I use Mannol/Shell oils and shell fuels always. The oil that was in it was shocking and not quite sure if I've seen worse! I did a oil and filter change and ran it for 20 miles and the new oil was so black i changed it again and will do it again with new filter once ive got it sorted and did a few more miles, so the new oil in can do its job! If the oil was that bad I’d run a flushing agent through it and change the oil and filter again . |
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jun 25, 2023 17:17:12 GMT
Thanks Charliefarlie
I've had some really good results with seafoam, which I dosed before that second oil change! Always nervous flushing as had a old boy who many years ago always said... One of these days that stuff will clean a bit of crap thats holding that engine together boy!!
Once I've got this issued fixed I will do the filter & oil ! What flush would you recommend?
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Post by charliefarlie on Jun 25, 2023 19:11:19 GMT
Thanks Charliefarlie I've had some really good results with seafoam, which I dosed before that second oil change! Always nervous flushing as had a old boy who many years ago always said... One of these days that stuff will clean a bit of crap thats holding that engine together boy!! Once I've got this issued fixed I will do the filter & oil ! What flush would you recommend? To be honest I’m no fan of the flushing agents I’m of the same opinion as you “ old boy” we have an old boy on here old Jase. 🤪🤪 Anyway I would only flush an engine that’s like your description. I’m a bit of a fanatic for doing more oil changes than the service schedule calls for on the basis engines are expensive oil isn’t. So unfortunately I can’t recommend a specific brand but I’d use one you add to the old oil run the engine then drain. Me I’d then fill with clean oil run it hard and drain and fill again. The 2AD series engines turn clean oil quite dark quite quickly usually within a thousand miles. That’s just diesels 👍👍 |
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jun 28, 2023 22:26:59 GMT
Had to shelf the Rav4 as the Adblue car pump has packed in, so need to fix that! Thanks for all the help and advice and will be back ASAP!
Quick question where can i download Techstream? everywhere that say download here dont have it!
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Post by firemac on Jun 29, 2023 8:06:03 GMT
Had to shelf the Rav4 as the Adblue car pump has packed in, so need to fix that! Thanks for all the help and advice and will be back ASAP! Quick question where can i download Techstream? everywhere that say download here dont have it! Could be wrong but I believe that Techstream can only be downloaded for a (relatively substantial) fee. ☹️ |
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rav4rob72
Club Member
If in doubt Leave Out!
Posts: 11
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Post by rav4rob72 on Jul 9, 2023 15:55:44 GMT
Hi everyone!
Back on the RAV4 I got! OK been trying to trace this fault with the EGR issue! Now I'm no electrician, but can usually pretend to be one and those on here that are would probably cringe at my long winded approach.
Anyhoo the integration relay according to spec should read 10k ohms or higher when connecting C1-1 and A1-4 to the multimeter, but I its OL! Could be doing the test wrong, but I think I'm following test procedure correct.
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