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1999 1.8 toyota trouble code P1656 OCV circuit malfunection.

Customer Question
Where is this part at?...
1999 1.8 toyota trouble code P1656 OCV circuit malfunection. Where is this part at?
Submitted: 9 years ago.Category: Toyota
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Answered in 7 minutes by:
6/4/2009
Toyota Mechanic: Toyota/Lexus Expert, Toyota Master Diagnostic Specialist replied 9 years ago
Toyota/Lexus Expert
Toyota/Lexus Expert, Toyota Master Diagnostic Specialist
Category: Toyota
Satisfied Customers: 1
Experience: 10 Years Toyota Lexus Experience. ASE Master Certified. ASE L1 Certified, Hybrid and Scion Certified
Verified
Hi im Paul. I would be very happy to help you quickly. I just need to know what model you have. Is it a corolla?
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Customer reply replied 9 years ago
It is the Chey Prizm, Toyota motor. I took a motor from a 99 prizm and installed into a 2000 prizm. The motor was running when it was de-installed from the 99 car. I'm unable to start the car now.
Customer reply replied 9 years ago

I got the code using a OBD II

 

Toyota Mechanic: Toyota/Lexus Expert, Toyota Master Diagnostic Specialist replied 9 years ago
The problem is in 2000 they went to the VVT system with the oil control valve. You have a 1999 Engine which is not equipped with that and your engine ecm is from your 2000 Prizm. If you want to use that engine you need a ecm from a 1999. I hope this helps you
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Customer reply replied 9 years ago
So If I swap the ECM it should work
Toyota Mechanic: Toyota/Lexus Expert, Toyota Master Diagnostic Specialist replied 9 years ago
Yes it will. Your ecm is looking for the oil control valve for the VVT and it is not there. It will work with the other ecm. That is pretty much the only change from 1999 to 2000. Thanks for the question and I hope you are totally satisfied with your answer. Thank you
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Toyota Mechanic: Toyota/Lexus Expert, Toyota Master Diagnostic Specialist replied 9 years ago
If i have helped you please hit the accept button, If not please ask me any questions you have. Thanks, Paul.
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Customer reply replied 9 years ago
I changed out the ecm and still have that error, not for sure what to do next
Toyota Mechanic: Toyota/Lexus Expert, Toyota Master Diagnostic Specialist replied 9 years ago
Still have the same codes also?
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Customer reply replied 9 years ago

now all I get is a error when I run the test. Checked the cable and see no issues

 

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