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Discussion Starter · #1 ·
I have an idle problem went through and replaced timing belt now everything seems smooth a few days after replacement the idle drops so low the car wants to stall out
 

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hi. does it happen only when your at idle? or is the car driving rough? also what year is your car? my first guess would be the IAC valve, idle air control valve. they can get gummed up by engine blowby. you may be able to clean it. depending on what year your car is i can give you the directions on how to do it. let me know. anything else just ask
 

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Discussion Starter · #3 ·
It is a 2005 forenza and would that valve be locate in the repair manual and a friend told me about a mass air sensor im a complete novice at mechanics so it all sounds like rocket science to me
 

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Hello and welcome, Imatouchstone.
You could also try an idle relearn. It's non-invasive (LOL) thus worth a shot:

Turn the ignition ON for 5 seconds.
Turn the ignition OFF for 5 seconds.
Turn the ignition ON for 5 seconds.
Start the engine in park/neutral.
Allow the engine to run until the engine coolant is above 185° F (85°C ).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
Turn the ignition OFF. The idle learn procedure is complete.

Someone needs to make this procedure a sticky, I've posted it quite a few times, LOL.
 

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hi, any update? did you try the idle learn procedure that P1NkY suggested? thanks by the way P1NkY i always forget about that little gem. or any of the other suggestions?
 

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SOLVED intermittent stalling

My FIX : replaced the MAP sensor (64 bucks with new wire harness on Amazon)

located under the fuel rail, resolved my issue. Two 10mm bolts hold down the fuel rail.

and one E12 Female torx socket to remove bolt holding MAP sensor ( I used an 8mm 12 point socket ) to remove The bolt holding the MAP sensor
 

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ReLearn procedure "Q"

Want to try this on my "05" as well.

I hope someone will see reply, I know its been a while since it was started.

Question for member, P1NkY

When allowing to warm to 185deg, is this when the engine hits operating temperature. Not necessary for cooling fan to cycle once. or will the cycling not be required for the computer to complete the relearn once it hits temp.

I just want to be certain it reads it correctly.
Thank you for your time.
 

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? Wouldn't let me edit previous reply ?

One more question to procedure.
At end of procedure when you turn off engine...

Take out of gear P/N or just turn off in D (engaged).

I would assume to disengage "P" or "N".
I know it sounds like a stupid "Q" but it may need to read it as you described.
 

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Hello and welcome, Imatouchstone.
You could also try an idle relearn. It's non-invasive (LOL) thus worth a shot:

Turn the ignition ON for 5 seconds.
Turn the ignition OFF for 5 seconds.
Turn the ignition ON for 5 seconds.
Start the engine in park/neutral.
Allow the engine to run until the engine coolant is above 185° F (85°C ).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
Turn the ignition OFF. The idle learn procedure is complete.

Someone needs to make this procedure a sticky, I've posted it quite a few times, LOL.
I have an 2007 Suzuki Forenza i just changed throttle body and also did the relearn throttle on it and now it is pulsing what does that mean.???
 

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Fuel trims are probably reset to zero. Drive it for a few days and it should come right, or you have a air leak its trying to compensate for

The idle relearn posted is not correct according to my manual.

After replacing battery if disconnected for more than 10 mins

Mine says in park if auto, neutral if manual
Do not touch any pedals
Key to ign on position
Wait 35 seconds
Start
Drive normally
 

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Thank you sir i will try and let you know the out come as far as an air leak i will double check all of my hoses and clamps thanks buddy and merry Christmas
 

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Did a compression test and all cylinders were 130psi+ except 3 which came back as 0psi. Ended up being a broken valve spring on number 1 exhaust side cylinder 3. I had replaced the head about 150miles before this occuring, while owner was driving about 35mph. Waiting to get the replacement set of springs in and then puttin her back together. Thanks for the help everyone
 
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