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Vans & Minivans Toyota Sienna Sienna emmission engine check light
15 messages, Last post on Mar 12, 2009 at 10:35 AM
You are in the Toyota Sienna Forum. Your Host is Karens
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I recently changed my timing belt at 106K, after completion I drove for a while then the check engine light illuminated. The vehicle drives beautifully with no apparent malfunction. I had a diagnostic check done and the code P01346 was displayed. I consulted the dealer for some assistance and was told that the rear cam shaft gear was off timing by a tooth which occasionally happens due to the position that cam is situated to see the marks for proper alignment. I however reset the timing again. After driving for a while the C/E light re appeared. Diagnostic test displayed code P1346 indicating VVT sensor/camshaft position sensor circuit, performance Bank 1. My question is, could the rear cam sensor get defective under the above circumstances. as it is not located in the area of the timing belt that it could be damaged or disturbed during repairs. Your suggestion would be appreciated.
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| Thanks for the info. The only place I have been able to find the code with my engine - P01350 for for Lexus but at least it did indicate bank #2. anybody seen Lexus codes with toyota engines. I know Lexus and toyota are actually under same business structure. nm | |
I have a 2002 sienna with 140000 miles on it the check engine light is on and i have a po420 catylist code bank 1. I changed bank 1 sensor bank 2 sensor and sensor at cat all coming from toyota. Then i changed the cat the engine pipe and the front cat connected to the manifold which in turn replaced all the cats. I reset the computer and after the drive cycle the same po420 catalyst code bank 1 returned i'm stumped now.
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Replying to: veepee1 (Dec 11, 2007 8:26 pm) |
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Traded in the sienna a year ago. The light never did go out. Took it to a really good repair place that checked it for emission leaks with smoke. They of course found leaks all over the place. The gas cap area (already replaced the cap once) and the canister leaked as well. They were talking 1500.00 to do the repairs and still would not guarrentee the engine light would go off. So we dumped the van. Sickens me that these sensors cause so many problems and the repair people are clueless to the answer. The repair place did say we had the wrong gas cap. But we got it from toyota, in fact the parts place needed our vin number because toyota had about 3 different caps for that year model. I guess the idiot gave us the wrong cap. Would not be supprised if that was the problem. But the van would stall and got bad gas mileage so it was getting to be too much of a problem. I can live with the gas mileage but stalling was too dangerous. |
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Replying to: mpokeo (Nov 15, 2008 7:50 pm) 
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Need Help - Please! 140,000 miles - car passes emmissions test levels but fails because of these codes and misfire codes. The CEL is on, and from other post, I checked the following: 1) the gas-cap- it whooshes when I open the tank after being parked for 1 hour. 2) removed the canister - it's lightweight and dry, and does not appear to be cracked, but it had heavy gas fumes. Hoses look new and are tight. 3) solenoid valve at canister - tested fine. Connections are good. 4) upper solenoid valve at air filter - tested fine. Connections are good. 5) upper hose at air filter - looks good. What's next to check? Any advice?
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Replying to: 03sienna (Mar 04, 2009 4:26 pm)
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Replying to: mommy2four (Mar 08, 2009 4:12 pm) I did not believe they knew what the problem was, because why would it leak all over the place. It should have been only one location. It was apparent they were trying to get me to repair things that did not need repair. We traded the van in but if it were the oil sludge issue. I would have still been covered under the toyota extended warranty for sludge which is 100k I think. Would have been nice to know this could have been the problem all along. Now that I think about it I am pretty sure a sludge issue would also have caused stalling. But the van would work fine most of the time. Just have that dumb engine light on.
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Replying to: gunga64 (Mar 11, 2009 7:00 am) |
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