Adv. Timing permanently retarded because of regular gas?
08-19-2006, 04:00 PM
#1
Adv. Timing permanently retarded because of regular gas?
I've had my timing advanced to 17* a while back and have religiously put 93 octane in my gas tank since I've owned the car. This past summer I've been home in New Jersey (went to school out in Illinois) and I've been subjected to full service gas stations. So I went to go get my gas tank filled and the guy puts in 87 octane. I didn't see it until I got my reciept which said xx gallons @ 2.91 (price of regular). I looked up at the pump and the number of gallons matched up with that on the reciept, meaning that it was regular gas that went into my gas tank.
When I went to start the car, I noticed the shifter vibrate quite a bit more than normal but then eventually go back to normal. I'm guessing the knock sensors did their job and retarded the timing.
My question is: is my timing now back to the stock 15* (or even less than that) or will it go back to 17* now that I've emptied that tank and filled it with 93 octane?
When I went to start the car, I noticed the shifter vibrate quite a bit more than normal but then eventually go back to normal. I'm guessing the knock sensors did their job and retarded the timing.
My question is: is my timing now back to the stock 15* (or even less than that) or will it go back to 17* now that I've emptied that tank and filled it with 93 octane?
08-19-2006, 07:08 PM
#2
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should not be.
whatever is set by consult is what is used as base. the knock sensor will retard from there downwards when it detects a knock.
with no knock (93) it should go back to the base of 17 degrees
whatever is set by consult is what is used as base. the knock sensor will retard from there downwards when it detects a knock.
with no knock (93) it should go back to the base of 17 degrees
08-19-2006, 08:22 PM
#3
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Originally Posted by frankd121
When I went to start the car, I noticed the shifter vibrate quite a bit more than normal but then eventually go back to normal. I'm guessing the knock sensors did their job and retarded the timing.
08-20-2006, 12:41 AM
#5
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dont worry about it, the ks will do its job and you will have less power for a bit, but once your needing gas again it will be ok. just drive it and treat it normally. dont reset the ECU or bring it to the dealer or anything
08-20-2006, 01:19 AM
#7
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reset ECU ranks right up there with "clean your throttle body" on the scale of universal fix it all solutions.
maybe only 2nd to seafoam though
maybe only 2nd to seafoam though
08-20-2006, 09:04 AM
#8
Originally Posted by MaxBoost925
do you know what you are talking about? 
Anywayz I was talking to the nissan tech who did my advance..he told me that if i do fill up w/ lower grade octane..it will retard the timing. He told me to get the timing up..the fastest way would be to drain the gas..fill up with highest octane avail and reset ecu..which would push back to default timing..which in my case is 17 degrees.
Chas
08-20-2006, 09:34 AM
#9
Originally Posted by acidbbg
which would push back to default timing..which in my case is 17 degrees.
Chas
Chas
08-20-2006, 10:53 AM
#10
Senior Member
Join Date: Apr 2003
Posts: 1,207
Originally Posted by acidbbg
He told me to get the timing up..the fastest way would be to drain the gas..fill up with highest octane avail and reset ecu..which would push back to default timing..which in my case is 17 degrees.
Chas
Chas
08-20-2006, 04:15 PM
#12
Well seeing as the default (factory) timing is 14 or 15 degrees, either you or your tech don't know what your talking about.
08-20-2006, 05:07 PM
#16
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Join Date: Jul 2006
Posts: 62
Sorry to be off topic but frankb121- where did you go to school in Illinois??
To be on topic, the resetting the ECU thing- our ecu does learn and this is the best solution to the problem if it still exists.
To be on topic, the resetting the ECU thing- our ecu does learn and this is the best solution to the problem if it still exists.
08-20-2006, 05:13 PM
#17
Originally Posted by rugarip
Sorry to be off topic but frankb121- where did you go to school in Illinois??
To be on topic, the resetting the ECU thing- our ecu does learn and this is the best solution to the problem if it still exists.
To be on topic, the resetting the ECU thing- our ecu does learn and this is the best solution to the problem if it still exists.
08-20-2006, 05:23 PM
#19
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Holy s***... For the last time, our ECU's DO NOT "learn" a base timing!
It comes from the factory set at 15*, the ONLY way to change it is with a Nissan Consult tool. When you set it 17*, IT STAYS! The only way to permanently change it back is to use the Consult tool again to set the base timing to 15* again.
No amount of resetting in the world will change this/
If the ECU senses a knock, it will temporarily retard the timing back towards 14-15*, once the knock goes away... It is right back to 17*.
It comes from the factory set at 15*, the ONLY way to change it is with a Nissan Consult tool. When you set it 17*, IT STAYS! The only way to permanently change it back is to use the Consult tool again to set the base timing to 15* again.
No amount of resetting in the world will change this/
If the ECU senses a knock, it will temporarily retard the timing back towards 14-15*, once the knock goes away... It is right back to 17*.
08-20-2006, 05:24 PM
#20
Originally Posted by upstatemax
I wash my ECU in seafoam to re-set it... Car runs MUCH better and it fixed my EGR problem... Washed the EGR codes right out of the ECU! 
I use a 50/50 Seafoam-Water mix in my radiator and coolant system
I wash my laundry using a special powdered Seafoam
I wash my hair with pure Seafoam. It's sooooo shiny
Also, my favorite drink is a Jack and Foam on the rocks.....
08-20-2006, 05:28 PM
#22
Originally Posted by upstatemax
Holy s***... For the last time, our ECU's DO NOT "learn" a base timing!
It comes from the factory set at 15*, the ONLY way to change it is with a Nissan Consult tool. When you set it 17*, IT STAYS! The only way to permanently change it back is to use the Consult tool again to set the base timing to 15* again.
No amount of resetting in the world will change this/
If the ECU senses a knock, it will temporarily retard the timing back towards 14-15*, once the knock goes away... It is right back to 17*.
It comes from the factory set at 15*, the ONLY way to change it is with a Nissan Consult tool. When you set it 17*, IT STAYS! The only way to permanently change it back is to use the Consult tool again to set the base timing to 15* again.
No amount of resetting in the world will change this/
If the ECU senses a knock, it will temporarily retard the timing back towards 14-15*, once the knock goes away... It is right back to 17*.
08-20-2006, 05:58 PM
#23
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Originally Posted by FriscoMaxima
i think this post needed to be the second one in this thread
Originally Posted by Hoooper
unless you were completely out of gas, like the tank was dry and you actually stalled, the gas that you fired up on was the 93 that you had put in the tank last. IF its knocking, as soon as you get some 93 back in there the timing will return to normal
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