Hi, Guys

I have a 92 Maxima SE (auto) 162km/100miles

The Car will not start from a warm start.
Example drive it for 30mins or so , then park the car for a bit.

I have waited hours until the car will start, depending on the weather.

I have owned the car for 6mths now.

I have replace the TBS, Serviced the throttle-body, replaced the starter, new air, fuel and platinum plugs.

The Car also lacks power at times, and there is no pattern to this.

I have a mild case of the VTC problem,(as per my locate Nissan dealer)
would that cause my problem?

Has anyone else experience this problem.

The Car starts and runs fine, whenever I bring it to the dealers.

Any help would be great
Thanks
Dave

 

You should increase your base idle ~100rpm. I'm pretty confident that this will solve the problem.

 

Just to add to my original post.

The Car will start from a warm start when the weather is cold,
But not will the weather is warm.

Eric, How do I increase the idle speed by 100rpm?

Thanks
Dave

 

There is a small phillips screw in the Idle air control valve, turning counterclockwise will raise the idle. I'll try and describe its location. The screw is flush with the IACV. It points toward the front of the car. It should be directly beneath the throttle body. With a long phillips head screw driver you should be able to reach it. Good luck

 

Do you think it is nessary to turn ECU before you adjust idle speed?

 

Although there is a specific procedure to increase the base idle, but in his case he just needs to open the screw about 3/4 turn.

 

Hi,

Can you please tell me what the following means?

"Turn ECU before you adjust idle speed"

Thanks
David

 

You can't even start the car in neutral when the engine is warm?

Hope your engine isn't secretly overheating or something.

 

Hate to say it I had a similar problem the cpu board had a bad solder joint. When it got warm If I shut it off it would crank like crazy but never start. after it cooled down or the wheather changed and it was cold no problem.

 

Hi,

Does this mean I have to replace the CPU ?

Please advise

Thanks

 

Hi,

Does this mean I have to replace the CPU ?
How can I test this to make sure this is my problem?

Please advise

Thanks

 

NO, he was just asking if the computer should be RESET after changing the idle.
His problem is not a common one (having a cracked solder point in the ecu)
The only other thing I can suggest (other than raising the base idle) would be having the IACV (idle air control valve) cleaned out .
How many miles are on your max?

 

Hi, Eric

My car has 101,000 miles.

Would I be able to clean the IACV (idle air control valve)?

Would of that been part of a throttle body service?

Thanks
Again
David

 

unfortunateley cleaning out the IACV would not be apart of a throttle body cleaning. Throttle body cleaning consists of just cleaning the butterfly valve of carbon deposits .

Some people on the org like to dissasemble their IACV. Personally I have a simpler method that involves spraying throttle body cleaner through the air intake that leads to the IACV.

http://forums.maxima.org/showthread.php?threadid=99296

Also your engine has alot of miles on it. Have you replaced any of the Ignition coils yet? (there are 6). If you have not I would reccomend replacing at least the three in the rear (or all of them if you have the $$$). they go for around $55 a piece from Courtesy Nissan in Texas (mention you are from the internet and you will get the discound).