ECU Memory problem on 2001 Acura CL.

2001 ACURA CL
172,000 MILES • 3.2L • 6 CYL • FWD • AUTOMATIC
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CLGUY2001
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I recently bought a 2001 Acura CL and have the following problems.
1.I lose all memory on the ECU system every time I turn off the engine.I took it for an emission test and had to do the usual drive exercise to get the computer set up as I installed a new battery. Each time I tried to do the emission test I cannot do so as there is no memory in the computer.
2. There is no Accessory power also. Each time I turn off the engine I have to reset the radio, heat,clock and also the power locks or remote does not work as well as the memory settings on the seat, mirrors etc.
3. When I start the car and leave it to run at idle everything is fine, but as soon as I drive for a few minutes the VSA and ! lights come on as well as the check engine light.
Please help as I have to get the emissions done before I can get it on the road and I desperately need to do so.
Thanks you.
Dec 4, 2014 at 9:37 AM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
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check all fuses under hood and drivers side under dash first then have a pro scan this for codes it may be a partially broken wire or similar.
Dec 4, 2014 at 12:16 PM
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CLGUY2001
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Thanks for your kind response. I have checked the fuses and they are all fine but the problem still exists. I have heard that there is a relay that controls this system on the car. It keeps the necessary system 'hot' (with power) while the ignition is turned off. Do you have any idea about this?
Dec 4, 2014 at 1:23 PM
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HMAC300
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I forgot to mention the pgm main relay tha t can make it run screwy as well that is under left side of dash
Dec 4, 2014 at 4:20 PM
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CLGUY2001
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Thanks. I will definitely check that as soon as I can find out what it looks like.Any ideas?
Dec 4, 2014 at 4:32 PM
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HMAC300
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
it's either square or rectangular should be marked
Dec 4, 2014 at 4:46 PM
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