Hello H-T,
My 01 GSR have these problems
1. Easy starting when cold. ( starts like a champ)
2. Harder to start when warm (Direct Sun explosure, Long time driving). (Changed starter, at least it will start now when its hot/under sun for sometime , but feels weak ) ( Weak starting or Click with nothing happened. works after cooling off awhile)
3.Poor fuel economy. (25 mpg average now, it used to be 30)
How should i get started to solve this problem?
Any help would be appreciated.
Thank you!

 

test the ECT sensor and confirm it's to spec, sounds like your problem to me.


http://www.d-series.org/forums/engin...mp-sensor.html

 

Easy starting when cold, harder starting when warm and poor fuel milage, [and running rich] are symptoms of a bad ECT sensor.

Intermittent starter problems can be a number of things, the first being a bad ground,

I would start by redoing your main grounds, disconnect/clean/reconnect, the batt. to chassis, chassis to engine, thermostat and VC grounds, DO NOT just eyeball them redo them.94

 

25mpg isn't necessarily a sensor issue. It's probably just because it's cold. A 2-5mpg drop due to weather is about normal...depending on temperature delta and driving habits. I guess 5mpg is a bit high...but...still could be weather related.

Does the car throw a CEL?

He's saying that the starter just clicks sometimes when it's warm. This could be a bad battery depending on his definitions of "cold" and "warm".

 

winter gas?

 

Thank you for your input i will give it a try!

 

I always keep a good habit I never press the gas hard and I shift at 2.5k rpm, i am always the slowest car at the light lol

No the car doesnt throw a CEL most of the time , ( occasionally it does, but it will go away sometimes later)

If it is the battery problem, How can i diagnose the problem? instead of just spending a hundred bucks for a new battery when the problem may not be just the battery.
Thank you!!

 

Didnt know there is a difference between "winter" or "summer" gas.
THe problem was here for quite awhile i just didnt pay too much attention to it until the problem is still here ( better tho) after i swapped out the starter.
The problem gets more serious in the summer ( due to the temp I guess)
Thank you for your imput!!

 

How do I diagnose if my car is running rich? and if its a bad ECT sensor, how can I diagnose/solve this problem?

I am not too sure on the steps on redoing my grounds, a detailed guide would be much appreciated!!
Thank you for your information!

 

Go to autozone and have the starting and charging system checked. Its free.

 

The sensor can be tested with a multimeter, search testing ECT sensor.

For redoing the grounds, step one- disconnect, step two- clean, step three, reconnect. 94

 

http://112.imagebam.com/download/V0t...8/page1232.jpg

http://www.spooledupracing.com/downl...dfbd31fb819d41