VE30DE issue - hesitation
01-25-2012 | 02:03 PM
#41
Junior Member
Joined: May 2009
Posts: 36
Cannot retard timing anymore
Recently, I did two things to my 92 SE:
1. Put a 470K ohm resistor to the KS connector;
2. Ground VTC.
After these two mods, timing is way advanced (close to 30 degrees BTDC) so I have to retard timing. I have turned the crank angle sensor to its limit (counter clock wise to retard timing). Now the timing is about 17 degrees BTDC. Although this is within timing limit of 15 +/- 2 degrees, I will not be able to reduce timing anymore.
So, I have two questions:
1. Is it normal to have timing way advanced after these two mods?
2. Is there a way to reduce timing further?
Thanks in advance.
1. Put a 470K ohm resistor to the KS connector;
2. Ground VTC.
After these two mods, timing is way advanced (close to 30 degrees BTDC) so I have to retard timing. I have turned the crank angle sensor to its limit (counter clock wise to retard timing). Now the timing is about 17 degrees BTDC. Although this is within timing limit of 15 +/- 2 degrees, I will not be able to reduce timing anymore.
So, I have two questions:
1. Is it normal to have timing way advanced after these two mods?
2. Is there a way to reduce timing further?
Thanks in advance.
01-26-2012 | 12:46 PM
#43
Hmm, I've never heard of the timing inexplicably advancing that far with grounding the VTC's and/or the resistor. If your timing is really that high though you need to be careful with no knock sensor being hooked up.
You cant post a new thread until you get to some arbitrary post-count. 15 or something, I think.
You cant post a new thread until you get to some arbitrary post-count. 15 or something, I think.
01-26-2012 | 05:55 PM
#44
Junior Member
Joined: May 2009
Posts: 36
Well, I experienced another thing today. I cannot start the car without pressing the gas pedal very hard. Before the mods, I can just turn the key to start the car. Not sure what causes this but I don't like it. So I canceled the two mods. Now I can start the car with just one turn of the key.
01-26-2012 | 05:57 PM
#45
Junior Member
Joined: May 2009
Posts: 36
Well, I experienced another thing today. I cannot start the car without pressing the gas pedal very hard. Before the mods, I can just turn the key to start the car. Not sure what causes this but I don't like it. So I canceled the two mods. Now I can start the car with just one turn of the key.
01-27-2012 | 12:35 AM
#47
Hey all, hoping somebody can help me solve my issue
The issue I'm having involves hesitation after the car has fully warmed up to operating temperature. The car runs perfect when cold. This can be felt the greatest while accelerating from a stop. I push the gas and the car doesn't really go anywhere for about 2-3 seconds sometimes then it finally starts to accelerate.
I've done the following repairs within the last 10,000 miles that I was hoping would solve the issue:
sparkplugs
air filter
fuel filter
6 new fuel injectors
I'm out of ideas and my mechanic who is a retired Nissan master mechanic cannot figure it out either. The only code the car throws is related to a speed sensor causing the ABS light to stay on. Hopefully somebody here has ran into this issue and has a solution. Thanks.
The issue I'm having involves hesitation after the car has fully warmed up to operating temperature. The car runs perfect when cold. This can be felt the greatest while accelerating from a stop. I push the gas and the car doesn't really go anywhere for about 2-3 seconds sometimes then it finally starts to accelerate.
I've done the following repairs within the last 10,000 miles that I was hoping would solve the issue:
sparkplugs
air filter
fuel filter
6 new fuel injectors
I'm out of ideas and my mechanic who is a retired Nissan master mechanic cannot figure it out either. The only code the car throws is related to a speed sensor causing the ABS light to stay on. Hopefully somebody here has ran into this issue and has a solution. Thanks.
01-27-2012 | 12:42 AM
#48
Recently, I did two things to my 92 SE:
1. Put a 470K ohm resistor to the KS connector;
2. Ground VTC.
After these two mods, timing is way advanced (close to 30 degrees BTDC) so I have to retard timing. I have turned the crank angle sensor to its limit (counter clock wise to retard timing). Now the timing is about 17 degrees BTDC. Although this is within timing limit of 15 +/- 2 degrees, I will not be able to reduce timing anymore.
So, I have two questions:
1. Is it normal to have timing way advanced after these two mods?
2. Is there a way to reduce timing further?
Thanks in advance.
1. Put a 470K ohm resistor to the KS connector;
2. Ground VTC.
After these two mods, timing is way advanced (close to 30 degrees BTDC) so I have to retard timing. I have turned the crank angle sensor to its limit (counter clock wise to retard timing). Now the timing is about 17 degrees BTDC. Although this is within timing limit of 15 +/- 2 degrees, I will not be able to reduce timing anymore.
So, I have two questions:
1. Is it normal to have timing way advanced after these two mods?
2. Is there a way to reduce timing further?
Thanks in advance.
And have a 12(or 10) mm nut driver for one of the water pipe's bolt and a 6mm allen hex.
01-27-2012 | 03:25 PM
#49
Junior Member
Joined: May 2009
Posts: 36
I have replaced the valve cover seals and some vacuum hoses not long ago. I should have done the KS and injectors at that time.
01-28-2012 | 01:23 AM
#50
If you have a good amount of money to replace those injectors, go for it. They're pricey though. If they're working fine, why replace them? You can check for air leaks by blowing smoke (if you smoke) by one of the vacuum hoses WHILE THE ENGINE IS OFF.
01-28-2012 | 07:54 AM
#51
Junior Member
Joined: May 2009
Posts: 36
How long does a injector last? Mine is almost 20 years old since I bought the car brand new in 1992.
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