PO401 and EGR/air intake manifold with pictures (5 Viewers)
- Thread starter cahill
- Start date
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no. they're previously posted pics. just doing a sort of illustrated and labeled cheat sheet for myself as i get a parts order together. figured to label everything so it is a paint by numbers effort and to post them up when i am done in case they can help others...
even if i go in and do the quickie fix i can have it for later when i have parts here and the time to dive into it.
oh ok i get it
here is the parts people i use
Select Parts Category - 1994 Toyota Land Cruiser | toyota-parts
if you don't get a quick enough response here you can search their website and get a good idea on how things work/connect.
norwalk is great i live in ga and usually get my parts in 2 days,I've gone to toyota dealers closer to me>10 miles and get 2 weeks when i ask about ordering parts........or they try and sell me a car.............
here is the parts people i use
Select Parts Category - 1994 Toyota Land Cruiser | toyota-parts
if you don't get a quick enough response here you can search their website and get a good idea on how things work/connect.
norwalk is great i live in ga and usually get my parts in 2 days,I've gone to toyota dealers closer to me>10 miles and get 2 weeks when i ask about ordering parts........or they try and sell me a car.............
BillyGoatMTB
SILVER Star
For anyone needing the Toyota factory part number diagram for vacuum hoses under and around the intake / throttle body
1997 FZJ80 195k miles
I started getting the P0401 error code on my 97 FZJ80 not too long ago and aside from an occasional stumble at idle and, of course the engine light, my LandCruiser ran fine. I run 91 octane gas and I was getting around 13 mpg which I have heard is on the low side so I figured I would tackle this job.
Using the resources from this board (and this thread specifically), the job went well. I used all Toyota parts and went the extra mile in sending the injectors off to be cleaned. I meticulously cleaned all reusable parts (intake, egr, etc) and went through abut 10 cans of carb cleaner doing so. There actually wasn't as much gunk as I thought. I also installed an oil catch can and hopefully that will help decrease the carbon deposit buildup in the future.
I want to thank everyone on this board and specifically Cahill (the OP) who took the time to take pictures and provide a step-by-step tutorial. It really made it a lot easier in doing this job. For the most part I followed the guidelines but I opted not to remove any of the cables attached to the throttle body and instead just moved it aside and cleaned it separately.
In any case, I have ran the LandCruiser about 500 miles and have noticed a much smoother ride and increased mpg. The longest part of the job was waiting for the injectors to be cleaned.
I started getting the P0401 error code on my 97 FZJ80 not too long ago and aside from an occasional stumble at idle and, of course the engine light, my LandCruiser ran fine. I run 91 octane gas and I was getting around 13 mpg which I have heard is on the low side so I figured I would tackle this job.
Using the resources from this board (and this thread specifically), the job went well. I used all Toyota parts and went the extra mile in sending the injectors off to be cleaned. I meticulously cleaned all reusable parts (intake, egr, etc) and went through abut 10 cans of carb cleaner doing so. There actually wasn't as much gunk as I thought. I also installed an oil catch can and hopefully that will help decrease the carbon deposit buildup in the future.
I want to thank everyone on this board and specifically Cahill (the OP) who took the time to take pictures and provide a step-by-step tutorial. It really made it a lot easier in doing this job. For the most part I followed the guidelines but I opted not to remove any of the cables attached to the throttle body and instead just moved it aside and cleaned it separately.
In any case, I have ran the LandCruiser about 500 miles and have noticed a much smoother ride and increased mpg. The longest part of the job was waiting for the injectors to be cleaned.
COYS
SILVER Star
- Thread starter
- #147
I assume you asking about the check valve for EVAP that I have circled in the last photo as number 3 and corresponds to my step 3 in the quoted portion? If so, I think the part number is 90917-10049 in my search but I never replaced that part so I don't have a receipt to be %100 sure.
COYS
SILVER Star
Here's a list of parts I ordered (all still avail from T):
| 25620-66011 | EGR valve assembly | egr/vacuum |
| 90910-12079 | Vacuum switch valve | egr/vacuum |
| 25870-66011 | EGR vacuum modulator | egr/vacuum |
| 16261-66040 | Water bypass hose | egr/vacuum |
| 16264-66021 | Water bypass hose | egr/vacuum |
| 16267-66020 | Water bypass hose | egr/vacuum |
| 25695-66010 | EGR vacuum hose | egr/vacuum |
| 90917-10049 | Check valve | egr/vacuum |
| 90980-11153 | Connector housing | egr/vacuum |
| 90413-04019 | Three way | egr/vacuum |
| 90910-12043 | Vacuum switch valve | egr/vacuum |
| 90999-92006 | Vacuum hose | egr/vacuum |
| 90999-92007 | Vacuum hose | egr/vacuum |
| 90925-03192 | Vacuum control valve | egr/vacuum |
| 22271-66010 | Throttle body gasket | egr/vacuum |
| 17179-66010 | Intake manifold gasket | egr/vacuum |
| 17171-66010 | Intake manifold gasket | egr/vacuum |
| 25627-66010 | EGR valve gasket | egr/vacuum |
| 44773-60150 | Brake booster vacuum hose | egr/vacuum |
| 90480-24015 | Check valve grommet (brakes | egr/vacuum |
| 44730-28010 | Brake booster check valve | egr/vacuum |
| 90999-92003 | Hose vacuum | egr/vacuum |
| 90999-92004 | Hose vacuum | egr/vacuum |
| 90999-92008 | Hose vacuum | egr/vacuum |
| 95337-06020 | Hose fuel | egr/vacuum |
| 95333-06010 | Hose fuel (100cm) | egr/vacuum |
| 25701-66011 | Vacuum control valve | egr/vacuum |
BillyGoatMTB
SILVER Star
I like your style, do it once do it right
Looks familiar. I just I'd all of this last year. Here's to hoping I don't have to touch it for a while.
Cleared my P0401 code with help from this thread. Have a ‘97 LC and there was cracked tubing at the nipples that run through the intake plenum. Both nipples on either end were corroded but I was able to use a pick to gently clear the hole and push it open. Replaced modulator and vsv, replaced all 3.5mm tubing plus more and cleaned intake to egr port.
It was more challenging to put everything back together than expected. One of the intake plenum nuts gave me fits to get back on.
It was more challenging to put everything back together than expected. One of the intake plenum nuts gave me fits to get back on.
BillyGoatMTB
SILVER Star
Good stuff about a year ago I did the same thing replaced all my spark plug seals check the valves had my whole intake cleaned checked or replaced bench tested all the components and replaced all the tubing.
I'm with you I remember one of the intake plenum bolts I had to get from underneath near the fuel filter and it was a nightmare with like five different extensions.
BillyGoatMTB
SILVER Star
Partsouq and Toyota parts deal have detailed parts diagrams.
There are a few banjo washers shown, fuel rail inlet, filter inlet, filter outlet.
Is there a part number for the VSV harness that runs under the upper intake manifold?
BillyGoatMTB
SILVER Star
You talking about the electrical connector harness that goes to the vac switches and injectors and all that?
If so I just replaced mine with the 1fz refresh and it's all one piece.
If so @NLXTACY has you covered.
80 Series 1FZ Complete Engine Wire Harness
80 Series 1FZ Complete Engine Wire Harness (EWH-1)
