High Idle At Cold Start

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11-28-2013, 01:20 AM

marxmax4

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High Idle At Cold Start

Hey org.

This could be a really easy solution, or a real pain in the ***.

When I cold start in the morning I idle 1500 to 2000.

When it's warmed up, it goes down to a normal idle around 700-900.

It's not a big deal to me and doesn't effect my driving, but it's annoying because it's not normal.

Any ideas or solutions?

11-28-2013, 02:30 AM

TurboA32

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Check vac lines for connections or breaks

11-28-2013, 02:51 AM

4th gen maxi

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Its suppose to!
The ecu also enriches until the coolant temp reaches a certain temp.

11-28-2013, 04:52 AM

IceBerg

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It's normal

11-28-2013, 06:01 AM

njmaxseltd

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Normal

11-28-2013, 06:54 AM

asand1

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Yup normal.

11-28-2013, 07:02 AM

njmaxseltd

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You can bring it down slightly by adjusting the fast idle linkage. It's located under and to the left on the throttle body. Follow the plunger and linkage, you'll see the adjustment screw. You can back it down to around 1500 when you start cold.

11-28-2013, 07:46 AM

IceBerg

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Leave it as it is anyone else can tell you once you mess with idle it can be a pita to correct

11-28-2013, 10:17 AM

marxmax4

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Thanks yall! I appreciate the quick responses. Thing is when I first got the car 2 years ago it never did this... But then again, I had a CEL before that I fixed (EGR clogged, MAF was dirty). But if it's normal I wont mess with it.

Last edited by marxmax4; 11-28-2013 at 10:19 AM.

11-28-2013, 11:29 AM

#10

TurboA32

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2k rpm on cold start is not normal

11-29-2013, 09:35 PM

#11

Climaxx

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You guys have some high *** cold start idle! Lol. Mine has never gone more than 1500 rpm

11-29-2013, 09:41 PM

#12

deathwobble

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Mine is 1k maybe 1300 rpm. 2K rpm is pretty high

11-29-2013, 09:51 PM

#13

chrome91

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Quote:

Originally Posted by TurboA32

2k rpm on cold start is not normal

most Mazdas especially older ones cold idle at 2 grand

Maximas i dont think 2 grand is normal, as said check vac lines etc. should be more around the 1500 range

11-30-2013, 01:35 AM

#14

jfactor

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What do you mean 'not normal'? In cold weather mine starts at around 1500 and goes down to 600-700 when it gets warmed up. My 94 Isuzu Pup and 99 Monte Carlo behaved similarly in cold weather, as does my sisters 01 Neon and my mothers 00 Sentra. I have fairly long list if you need more.

11-30-2013, 01:23 PM

#15

chrome91

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Quote:

Originally Posted by jfactor

What do you mean 'not normal'?

anything over 2000rpm is kinda bad, right when you start it up in the cold some parts of the engine arent fully lubricated and going over 2 grand can run them dry and can cause issues in the long run

11-30-2013, 06:35 PM

#16

Trini Boom

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Quote:

Originally Posted by Climaxx

You guys have some high *** cold start idle! Lol. Mine has never gone more than 1500 rpm

Must agree here. I have two 4th gens in NY and in the teens, both of my 4th gens do not cross 1500RPM at cold start. 2K is definitely a problem and should not be idling at 900 at warm. You should be at 650RPM +/- 50RPM according to FSM.