2001 Toyota Prius starts runs a few seconds an quits.
I checked sparke plugs for fire, its good.
starts runs a few seconds an quits.
I checked sparke plugs for fire, its good.
What is your question?
First off, I bought this from a junk yard in Ia. I'm guessing it had set for around a year or more. The HV battery was so dead that the best module measured .2 V
I rebuilt the HV battery using 38 modules out of 07 2nd Gen.HV Battery works good. I ran it for over a week in
another 01 Prius to insure integrity.
I had to have a new ignition key made had none.
Locksmith Flashed ECU and reprogrammed it to new key. He set up the handshake between the Transponder ECU and the engine ECM. Took 31 minutes to set the handshake. Not sure what pins in the DLC he shorted accross for the handshake.
After getting key made it had started right up as though it was it had been running fine. I made two little circles around the yard an it just bogged down an quit.
So far I checked spark, was good. Fuel pressure 50Lbs an holds over 30Lbs for over 30 Min.
I'm leaning toward replacing the engine ECM but not too sure of myself as yet. I would also have to set the handshake between the Transponder ECU an the new engine ECM.
I hope someone can steer me in a right direction for systematic sequence of troubleshooting this thing.
I notice the post about the filter getting in the MAF, I thought I had it nailed. My air filter had a hole in it maybe from a mouse.
I changed the MAF out with my second 01 prius an with no good result. The one I am driving runs fine with the MAF form the problem one.
I sure would appreciate some help here, I'm about to burn out on this thing.
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I have changed the HV Battery back an forth several times with another Prius I have that's working. Both batteries work fine in the working Prius an I have the same problem with either battery in the problem car.
Today I swapped out the Inverter/converter. I started the engine and the power flow meter was showing fully charged HV Battery. By the time I had moved a few things out of the way for a test drive Probably about 2 minutes running time the engine shuttered an Got the HV Battery problem.
So far I substituted the HV Battery, the Inverter/converter, throttle body, throttle position sensor and running out of parts to change out.
I may try the engine ECM next. I really don't want to because I will have to set up the handshake between the transponder ECU and the engine ECM.
I'm not really wanting to do that if I can come up with other ideas that may work.
I've never set up this handshake before an I think I have to short across the Pin 4 and 13 of the DLC an leave it with the ignition on for 30 minutes.
I'm not finding real clear instructions for this procedure. I downloaded directions from the Toyota web site but they had the pin numbers all labeled wrong
and the instructions were Japanese. Like I got to learn their language to work on this stuff?
If anyone has any ideas for me, believe my I would be so appreciative.
Thanks, Hank
Hi there . Do you have any updates ? I have the same problem with my 2001 prius . After it sit for 2 months . I lost the engine battery ( not the hybrid one) the car stars for one minute then shut itself off . I replace both of the engine computer and the hybrid computer with no difference . Need help please
It seems no one knows anything about these cars on this site. I have not received anything back so far as
to what could cause this problem.
So far as your Prius, when you replaced the engine ECM, did you set up the handshake between the transponder ECU and the engine ECM? You must first turn on the ignition with engine stopped then jump between pins 4 and 13
of the DLC and leave it sit that way for 30 minutes then turn off the ignition, remove jumper and start the engine, this should set the handshake so the ECM an The ECU are good to go.
Let me know if this was any help an also keep me up dated on anything you may learn about either of our problems.
Also do you get any indication of Main Battery Problem on the screen? Mine does I also get a DLC code of P1310. I've changed the HV battery out about 4 times with known good complete battery assemblies, it runs an the screen shows energy flowing from ICE to HV battery but while this is happening, the HV battery is going down an not up. It's as though it was reverse polarity an discharging the battery rather than charging. I hope some one with more knowledge than us will offer some good suggestions. Thanks much for your reply, hope something helps someone before we give up on this.
I have changed the HV Battery back an forth several times with another Prius I have that's working. Both batteries work fine in the working Prius an I have the same problem with either battery in the problem car. Today I swapped out the Inverter/converter. I started the engine and the power flow meter was showing fully charged HV Battery. By the time I had moved a few things out of the way for a test drive Probably about 2 minutes running time the engine shuttered an Got the HV Battery problem. So far I substituted the HV Battery, the Inverter/converter, throttle body, throttle position sensor and running out of parts to change out. I may try the engine ECM next. I really don't want to because I will have to set up the handshake between the transponder ECU and the engine ECM. I'm not really wanting to do that if I can come up with other ideas that may work. I've never set up this handshake before an I think I have to short across the Pin 4 and 13 of the DLC an leave it with the ignition on for 30 minutes. I'm not finding real clear instructions for this procedure. I downloaded directions from the Toyota web site but they had the pin numbers all labeled wrong and the instructions were Japanese. Like I got to learn their language to work on this stuff? If anyone has any ideas for me, believe my I would be so appreciative. Thanks, Hank
Hi there . Do you have any updates ? I have the same problem with my 2001 prius . After it sit for 2 months . I lost the engine battery ( not the hybrid one) the car stars for one minute then shut itself off . I replace both of the engine computer and the hybrid computer with no difference . Need help please
It seems no one knows anything about these cars on this site. I have not received anything back so far as to what could cause this problem. So far as your Prius, when you replaced the engine ECM, did you set up the handshake between the transponder ECU and the engine ECM? You must first turn on the ignition with engine stopped then jump between pins 4 and 13 of the DLC and leave it sit that way for 30 minutes then turn off the ignition, remove jumper and start the engine, this should set the handshake so the ECM an The ECU are good to go. Let me know if this was any help an also keep me up dated on anything you may learn about either of our problems. Also do you get any indication of Main Battery Problem on the screen? Mine does I also get a DLC code of P1310. I've changed the HV battery out about 4 times with known good complete battery assemblies, it runs an the screen shows energy flowing from ICE to HV battery but while this is happening, the HV battery is going down an not up. It's as though it was reverse polarity an discharging the battery rather than charging. I hope some one with more knowledge than us will offer some good suggestions. Thanks much for your reply, hope something helps someone before we give up on this.
The HV Battery is the one that starts the ICE, MG1 is the starter motor. The small 12V runs all computer controls which is also need to start the car.