Esteem MPFI engine too fast - Team-BHP

schumi2508 · 4th January 2008, 21:03

Hi
Friends, i own a 2001 model MPFI esteem VX...i ve jus bought it recently
the cars running fine but thers one small problem..
ocassionally wen u start the car the rpm goes up to 1k or more wen in neutral n stays ther..so while drivin if u leave the accel 2 ..the car keeps movin ahead wid good enuf speed..which cn b dangerous in traffic..
somtimes this is gone wen i restart my car..wid everythn becomin normal n rpm remainin less than 1k in neutral..i ve shown it to a couple of mechanics who did some tuning n said it ws done..bt while driving i steel feel that the engine is fast...plz help me out as to what i cn do..

thnx

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wolfinstein · 5th January 2008, 19:19

Check the Throttle, clean if required...I think the adjustment of the Throttle valve needs to be done.

yasw_anth · 5th January 2008, 19:56

had same problem in my zen till yesterday.got the throttle body cleaned today and that solved

amohit · 5th January 2008, 20:24

actually, today even i noticed the same problem in my 3 months old esteem. When i cold start the car, the rpm goes to 1500. then after a min settles down to 900+
I guess got to get it checked next time i go for service.

Regards,

akshay1234 · 5th January 2008, 20:54

Quote:

Originally Posted by amohit

actually, today even i noticed the same problem in my 3 months old esteem. When i cold start the car, the rpm goes to 1500. then after a min settles down to 900+
I guess got to get it checked next time i go for service.

Regards,

thats not a problem. it would be high when you cold start a car so that it warms up quickly. after warming up it settles back down.

esteem_lover · 5th January 2008, 21:30

Quote:

Originally Posted by amohit

actually, today even i noticed the same problem in my 3 months old esteem. When i cold start the car, the rpm goes to 1500. then after a min settles down to 900+
I guess got to get it checked next time i go for service.

Regards,

This is not a problem at all. All mpfi engines are set like that. In cold starts, they tend to idle at higher rpms & settle down to 900 rpm after a while whereas a carb engine can be made to idle even at 500-600 rpm, please do not compare these two.

kjdesigns_2000 · 6th January 2008, 19:50

Quote:

Originally Posted by amohit

actually, today even i noticed the same problem in my 3 months old esteem. When i cold start the car, the rpm goes to 1500. then after a min settles down to 900+
I guess got to get it checked next time i go for service.

Regards,

It is all controlled by the ECU. Till the engine has reached a certain revs or maybe temp it will stay there. But after a very short drive it gets settled down. Nothing to worry here, its normal.

snaronikar · 6th January 2008, 20:16

As others has put it, this is not a problem at all. Even my previous Wagon R was behaving the same way and now the Ikon is also same. This is the normal idling rpm when cold started. It settles down after about 5~10 mins running. Hence do not worry about this.

amohit · 6th January 2008, 21:17

oh thank god!
all this time I had started thinking i'm wasting extra few ml of Shell Super every time I start my baby

Regards,

amit_mechengg · 7th January 2008, 09:09

dont worry guys. its very normal and delibrate.for every cold start all car that are ecu controlled have a concept of auto choke wherein a very rich mixture is injected to avoid dry run and to get that initial temp quickly. this settles within 5-15 sec depending on engine temp the sensors sense.

vnabhi · 7th January 2008, 11:10

Quote:

Originally Posted by snaronikar

As others has put it, this is not a problem at all. Even my previous Wagon R was behaving the same way and now the Ikon is also same. This is the normal idling rpm when cold started. It settles down after about 5~10 mins running. Hence do not worry about this.

I agree. Even my petrol Fiesta has similar traits.

bhogalrajnish · 7th January 2008, 14:37

Hi,

There is valve for the coolant at the connector that connects the coolant hose to the engine. The valve may be bad not closing or may have been removed as mechanics remove it if it is not working properly. I have the same issue on my esteem it was overheating as the valve was bad so i removed it but havent found the time to look for the missing valve. The valve stops the coolant flow when it is not needed. You may also find that the car is taking more time to warm up than normal that is due to excess coolant flowing through the engine.

armotosport · 9th January 2008, 18:57

Quote:

Originally Posted by schumi2508

Hi
Friends, i own a 2001 model MPFI esteem VX...i ve jus bought it recently
the cars running fine but thers one small problem..
ocassionally wen u start the car the rpm goes up to 1k or more wen in neutral n stays ther..so while drivin if u leave the accel 2 ..the car keeps movin ahead wid good enuf speed..which cn b dangerous in traffic..
somtimes this is gone wen i restart my car..wid everythn becomin normal n rpm remainin less than 1k in neutral..i ve shown it to a couple of mechanics who did some tuning n said it ws done..bt while driving i steel feel that the engine is fast...plz help me out as to what i cn do..

thnx

Note from the Team-BHP Support Staff : Slang and SMS Language are STRICTLY prohibited on Team-BHP. Please type in full and proper English for the benefit of other community members.

We advise you to read the Announcements and Board Rules section before proceeding any further.

hello
CHECK UR IDEAL CONTROLL VALVE

Psycho · 8th February 2008, 13:44

This is common with 2001 model esteems the rpm comes down when the engine heats up.

alankarmotor · 8th February 2008, 17:20

HI, please take ur car to a authorised workshop and ask them to do a rpm control test by a tech2 diagnostic equipment. If the engine does not respond to the comand of tech2 gradualy and responds with jerks then it is time to replace the I.A.C valve,no wonder how much u try to clean the throtle body will not help. Actualy in this rpm test the I.A.C duty is changed tmporarily to which the engine response should be linear.

Quote:

Originally Posted by schumi2508

Hi
Friends, i own a 2001 model MPFI esteem VX...i ve jus bought it recently
the cars running fine but thers one small problem..
ocassionally wen u start the car the rpm goes up to 1k or more wen in neutral n stays ther..so while drivin if u leave the accel 2 ..the car keeps movin ahead wid good enuf speed..which cn b dangerous in traffic..
somtimes this is gone wen i restart my car..wid everythn becomin normal n rpm remainin less than 1k in neutral..i ve shown it to a couple of mechanics who did some tuning n said it ws done..bt while driving i steel feel that the engine is fast...plz help me out as to what i cn do..

thnx

Note from the Team-BHP Support Staff : Slang and SMS Language are STRICTLY prohibited on Team-BHP. Please type in full and proper English for the benefit of other community members.

We advise you to read the Announcements and Board Rules section before proceeding any further.

4th January 2008, 21:03	#1 (permalink)
schumi2508 Newbie Join Date: Dec 2007 Location: Mumbai Posts: 3	Esteem MPFI engine too fast Hi Friends, i own a 2001 model MPFI esteem VX...i ve jus bought it recently the cars running fine but thers one small problem.. ocassionally wen u start the car the rpm goes up to 1k or more wen in neutral n stays ther..so while drivin if u leave the accel 2 ..the car keeps movin ahead wid good enuf speed..which cn b dangerous in traffic.. somtimes this is gone wen i restart my car..wid everythn becomin normal n rpm remainin less than 1k in neutral..i ve shown it to a couple of mechanics who did some tuning n said it ws done..bt while driving i steel feel that the engine is fast...plz help me out as to what i cn do.. thnx Note from the Team-BHP Support Staff : Slang and SMS Language are STRICTLY prohibited on Team-BHP. Please type in full and proper English for the benefit of other community members. We advise you to read the Announcements and Board Rules section before proceeding any further. Last edited by DCEite : 5th January 2008 at 19:34. Reason: See note.
	$Received Infraction$

5th January 2008, 19:19	#2 (permalink)
wolfinstein BHPian Join Date: Feb 2006 Location: New Delhi Posts: 951	Check the Throttle, clean if required...I think the adjustment of the Throttle valve needs to be done. __________________ " When was the last time, You did something for the first time "

5th January 2008, 19:56	#3 (permalink)
yasw_anth BHPian Join Date: Oct 2006 Location: Chennai Posts: 85 View My Garage	had same problem in my zen till yesterday.got the throttle body cleaned today and that solved __________________ Cheeers Yaswanth :)

5th January 2008, 20:24	#4 (permalink)
amohit BHPian Join Date: Jul 2007 Location: Bangalore Posts: 229	actually, today even i noticed the same problem in my 3 months old esteem. When i cold start the car, the rpm goes to 1500. then after a min settles down to 900+ I guess got to get it checked next time i go for service. Regards, __________________ Mohit Finally...Esteem VXI.

6th January 2008, 20:16	#8 (permalink)
snaronikar Senior - BHPian Join Date: Jun 2007 Location: Bengaluru Posts: 2,170 View My Garage	As others has put it, this is not a problem at all. Even my previous Wagon R was behaving the same way and now the Ikon is also same. This is the normal idling rpm when cold started. It settles down after about 5~10 mins running. Hence do not worry about this. __________________ Love your job but Never love your company because you never know when your company stops loving you-NRN

6th January 2008, 21:17	#9 (permalink)
amohit BHPian Join Date: Jul 2007 Location: Bangalore Posts: 229	oh thank god! all this time I had started thinking i'm wasting extra few ml of Shell Super every time I start my baby Regards, __________________ Mohit Finally...Esteem VXI.

7th January 2008, 09:09	#10 (permalink)
amit_mechengg BHPian Join Date: Dec 2007 Location: Pune Posts: 768 View My Garage	dont worry guys. its very normal and delibrate.for every cold start all car that are ecu controlled have a concept of auto choke wherein a very rich mixture is injected to avoid dry run and to get that initial temp quickly. this settles within 5-15 sec depending on engine temp the sensors sense. __________________ " I dont Drive Fast , I Fly Slowly "

7th January 2008, 14:37	#12 (permalink)
bhogalrajnish BHPian Join Date: Jan 2006 Location: delhi Posts: 85	check the coolant valve. Hi, There is valve for the coolant at the connector that connects the coolant hose to the engine. The valve may be bad not closing or may have been removed as mechanics remove it if it is not working properly. I have the same issue on my esteem it was overheating as the valve was bad so i removed it but havent found the time to look for the missing valve. The valve stops the coolant flow when it is not needed. You may also find that the car is taking more time to warm up than normal that is due to excess coolant flowing through the engine.

8th February 2008, 13:44	#14 (permalink)
Psycho Distinguished - BHPian Join Date: Jul 2004 Location: Bangalore Posts: 784 View My Garage	This is common with 2001 model esteems the rpm comes down when the engine heats up. __________________ Learning is a continuos job that keeps me busy.

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