Engine problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Asoto32 · 01-07-2016, 08:40 AM

Hello everyone I have an s14 with the KA24DE with cold starts it will take multiple cranks to start up the car and when it starts it'll idle irregularly until it levels out (levels out low at 800rpm) roughly, has anyone had this problem before I know MAFs are known to go bad on 240s

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SoundEfx · 01-07-2016, 09:39 AM

Your IACV might be bad or clogged a little.

Is your cel on?

Asoto32 · 01-07-2016, 09:41 AM

It used to be for an Evap issue but I disconnected the battery like 2 months ago to splice some lights and it never came back on

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SoundEfx · 01-07-2016, 10:19 AM

Have you ever changed your coolant sensors?

If it never leveled out, I would have thought that it was a vacuum leak.

Asoto32 · 01-07-2016, 10:20 AM

Nope but I flushed the coolant when I switched out my leaky waterpump not too long ago

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SoundEfx · 01-07-2016, 10:30 AM

I had a rich idle issue with my KA-T and when I changed the coolant sensors, it helped significantly. So it's not the coolant in question because if the sensors are not reading the temperature correctly, you could still have issues.

I might start there because they are just a few dollars each.

Asoto32 · 01-07-2016, 10:31 AM

Thanks man appreciate the advice!

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01-07-2016, 08:40 AM	#1
Asoto32 Join Date: May 2015 Location: Illinois Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	Engine problems Hello everyone I have an s14 with the KA24DE with cold starts it will take multiple cranks to start up the car and when it starts it'll idle irregularly until it levels out (levels out low at 800rpm) roughly, has anyone had this problem before I know MAFs are known to go bad on 240s Sent from my iPhone using Tapatalk

01-07-2016, 09:39 AM	#2
SoundEfx Zilvia FREAK! Join Date: Aug 2015 Location: WA Posts: 1,230 Trader Rating: (1) Feedback Score: 1 reviews	Your IACV might be bad or clogged a little. Is your cel on? __________________

01-07-2016, 10:19 AM	#4
SoundEfx Zilvia FREAK! Join Date: Aug 2015 Location: WA Posts: 1,230 Trader Rating: (1) Feedback Score: 1 reviews	Have you ever changed your coolant sensors? If it never leveled out, I would have thought that it was a vacuum leak. __________________

01-07-2016, 10:30 AM	#6
SoundEfx Zilvia FREAK! Join Date: Aug 2015 Location: WA Posts: 1,230 Trader Rating: (1) Feedback Score: 1 reviews	I had a rich idle issue with my KA-T and when I changed the coolant sensors, it helped significantly. So it's not the coolant in question because if the sensors are not reading the temperature correctly, you could still have issues. I might start there because they are just a few dollars each. __________________

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01-07-2016, 09:41 AM	#3
Asoto32 Join Date: May 2015 Location: Illinois Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	It used to be for an Evap issue but I disconnected the battery like 2 months ago to splice some lights and it never came back on Sent from my iPhone using Tapatalk

01-07-2016, 10:20 AM	#5
Asoto32 Join Date: May 2015 Location: Illinois Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	Nope but I flushed the coolant when I switched out my leaky waterpump not too long ago Sent from my iPhone using Tapatalk

01-07-2016, 10:31 AM	#7
Asoto32 Join Date: May 2015 Location: Illinois Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	Thanks man appreciate the advice! Sent from my iPhone using Tapatalk