Lumpy on cold starts?

[Robboo]

Hi guys, got a weird issue, sometimes when I start my Zed up on cold mornings the idle will be lumpy and so will acceleration.

 

After 2-3 minutes the engine light starts flashing aswell, If i turn the engine off and on again the problem goes. And no issues when hot?

 

I would try getting a fault code but no idea how to get them up

 

Anybody had anything similar?

 

Cheers, Rob

[rtbiscuit]

throttle body might need cleaning. could be blocked injectors, running a can of BG44k might help. or could be a spark issue, when were the plugs last changed?

 

this are all good start points and in expensive

[Robboo]

Ive only had the car around a month, and was told the car was serviced not long before. But then again anyone could say that lol. I can check the spark plugs thats a good shout.

 

Didnt think it would be the throttle body? And could that and blocked injectors cause issues only on really cold starts?

[rtbiscuit]

throttle body can get a bit sticky, becareful cleaning round it. if it gets nudged, it can kick a code up. something like a spray in cleaner for when the engine is runing might work best. or use a carb cleaner.

 

lumpy on a cold start up might be spark or coil, but without being in the car its difficult to diagnose.

[Robboo]

I know it is hard to diagnose without seeing what I mean or having any fault codes, just moved the car and it did it but gave it revs a couple times and it went. Very strange!

 

Will try and get a look at the plugs tomorrow and will get some TB cleaner. Thanks v much buddy

[rtbiscuit]

see how it goes, i'd try the BG44k as well, once you've run 2 tanks through one with and one without you'd be suprised how good it is

[Dblock]

If you clean your TB do all the resets and idle relearn as that always smooths it out for me.