Golf GTI 1.8t Idle Problem

A problem I had with my Golf gti..

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0:00 RPM stays normal (A bit high because its cold out)
0:05 Starts to jump
0:18 Press the gas down a bit for a couple seconds
0:22 Release gas...

UPDATE: Problem solved.. Changed the plugs and airfilter and cleander the carb and MAF.. Dont know if it was all or some of the things i did to get it working...

Category:

Autos & Vehicles

Tags:

• vw
• volkswagen
• Golf
• iv
• GTI
• 1.8t
• turbo
• 1.8
• AGU
• mk4
• idle
• problem
• rpm
• jump
• bad
• fix

[mazetechsystems]

did you ever figure out what caused this?

I have a similar problem

[madsipuli]

@mazetechsystems Not really but in the description you can see what I did to fix it...

[clintcoza]

My Passat 1.8T 20 valve turbo had this problem. The throttle body is caked with hardened oil residue which stops the throttle plate closing correctly affecting air flow and confusing the ECU. Just clean inside the throttle and the throttle plate with a clean lint free rag using WD40 and lightly spray the throttle spindle/bush on either side.

residue.

[ahhbee23]

Correct its a bad iac valve and you can't just swap that out. You have to get a different throttle body

[jamie211983]

idle air control valve or air leak.

[gti150]

Throttle body bad....

[Evolancer276]

@mazetechsystems most likely the MAF (Mass Air Flow) just clean it if you haven't already.

[cwtrehill]

could be the air bo plugs . it happend on mine and one was loose i put it bk on and it run fine