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P1606 VVEL issue/code

reviving an old thread but this happened to me twice in a year's time. first time I swapped the module and left it overnight then it started and ran fine

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Old 01-08-2020, 04:19 PM   #31 (permalink)
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reviving an old thread but this happened to me twice in a year's time. first time I swapped the module and left it overnight then it started and ran fine for several months. recently it's been happening a couple times a week and luckily I was able to clear the code and restart and it would run fine but yesterday the P1606 popped up and WOULD NOT CLEAR. took a Lyft to a nearby dealership where they had 1 relay left in stock, swapped it in and still nothing. limped it home at 5mph and let it sit overnight and now it runs like nothing ever happened. I'd really like to know the definite fix for this. even though I have AAA I'd rather fix it once and be sure.

tl;dr new relay + sitting overnight fixed my P1606

Last edited by BlackieChanz; 01-08-2020 at 04:21 PM.
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Old 01-08-2020, 05:51 PM   #32 (permalink)
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Sounds like a wiring or sensor problem. The FSM (link in my sig) will have troubleshooting procedures.
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Old 01-12-2020, 05:41 PM   #33 (permalink)
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Quote:
Originally Posted by SouthArk370Z View Post
Sounds like a wiring or sensor problem. The FSM (link in my sig) will have troubleshooting procedures.
thanks. downloaded most of it the first time i had this issue.

sidenote, after i replaced the relay last week it seems my car runs differently, the exhaust sound is deeper and it feels like the car runs smoother? is this a placebo or can the VVEL module really make that much of a difference?
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Old 01-12-2020, 06:18 PM   #34 (permalink)
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Quote:
Originally Posted by BlackieChanz View Post
... after i replaced the relay last week it seems my car runs differently, the exhaust sound is deeper and it feels like the car runs smoother? is this a placebo or can the VVEL module really make that much of a difference?
I have two guesses:
1) The new module is allowing the engine to run properly again, ie, that's the way it's supposed to sound.
2) The new module has slightly different programming.
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Old 01-18-2020, 08:46 AM   #35 (permalink)
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Quote:
Originally Posted by BlackieChanz View Post
reviving an old thread but this happened to me twice in a year's time. first time I swapped the module and left it overnight then it started and ran fine for several months. recently it's been happening a couple times a week and luckily I was able to clear the code and restart and it would run fine but yesterday the P1606 popped up and WOULD NOT CLEAR. took a Lyft to a nearby dealership where they had 1 relay left in stock, swapped it in and still nothing. limped it home at 5mph and let it sit overnight and now it runs like nothing ever happened. I'd really like to know the definite fix for this. even though I have AAA I'd rather fix it once and be sure.

tl;dr new relay + sitting overnight fixed my P1606
Im going through the same thing. Swapped module and relay out yesterday with no luck. Its been sitting in the garage overnight so hopefully itll start fine later this morning
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Old Yesterday, 09:41 AM   #36 (permalink)
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Check your grounds for vvel. Wire brush and make sure they are tight on the chassis.

My dealer says it's the wiring harness. They wanted 8k between parts and labor. There's 2 harnesses they wanted to replace. The engine harness and the body control harness. Talking to the mechanic himself he said he thinks it's just the body control harness but he had to run it by some area Nissan engineer who told him replacing both is the only way to garuntee it's fixed since I kept coming back with the same issue.
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Old Yesterday, 10:49 AM   #37 (permalink)
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Is the ground right behind the relays and next to the fuse box?
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