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Discussion Starter #1
Hello,
I have a 2004 toyota Sienna. the first time i put the key in it runs for one second then dies. the second attempt to start the car is successful but i will not go above 3,000 rpm.
I get error codes P0102 for the mass air flow sensor if i run it un plugged the car drives the same. I have replaced the Mass air flow sensor twice. I have also replaced the H02S in Bank 1 Sensor 2, as that was an error code i got.

Today when i went to make the video for this post i received 7 error codes they are P0037, P0057, p0101, p0102, p0103, p0113, p0113 p0101

I have reset these codes several times by removing the negitive bat cable for 15 min. each some variance of the above codes.

I have tried a used computer from another 2004 sienna, it would start and die like as usual but the second attempt to start the car would not start the car, so it would just try and try.

any ideas?

see videos



Thanks in advance,
Nathan
 

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To begin with, stop disconnecting the battery as a way to clear codes. Your code reader most likely has a code clearing function - use it! These vehicles do not have a stand-alone IAC (Idle Air Control), but instead use a learned feature for electronic throttle plate setting and fuel metering. Every time you wipe the ECU, you set yourself back a few squares in getting the basic functionality (starting and idling) ironed out.

Begin by cleaning the crud from the throttle plate and throttle body with a solvent dampened rag. Follow the instruction in this TSB.
 

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Discussion Starter #3
This turned out to be a combo of issues. I have had this van for 3 months and had nothing with trouble. I purchased it from West Coast auto online DON'T DO THAT, ANYONE. they or the previous owner had soldered the main fuse-able link in the fuse box. (900 bucks for me to have fixed) also the shop i took it to said the ground was not good so they replaced the ground for the battery. once those two items were fixed i had to replace the Mass air flow sensor because apparently it got fried. after this i got a code for only the H02 Sensor so i had that replaced and that fixed it. That's it! well for a few months anyway i just had the EFI relay replaced. and so far(one day out) its working like a charm.
if it last for a few months ill try to figure out why its a little shaky on the highway at 70 mph but ill just be happy that it starts for a while.
 

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Hello,
I have a 2004 toyota Sienna. the first time i put the key in it runs for one second then dies. the second attempt to start the car is successful but i will not go above 3,000 rpm.
I get error codes P0102 for the mass air flow sensor if i run it un plugged the car drives the same. I have replaced the Mass air flow sensor twice. I have also replaced the H02S in Bank 1 Sensor 2, as that was an error code i got.

Today when i went to make the video for this post i received 7 error codes they are P0037, P0057, p0101, p0102, p0103, p0113, p0113 p0101

I have reset these codes several times by removing the negitive bat cable for 15 min. each some variance of the above codes.

I have tried a used computer from another 2004 sienna, it would start and die like as usual but the second attempt to start the car would not start the car, so it would just try and try.

any ideas?

see videos



Thanks in advance,
Nathan
CHECK fuse
 
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