Random misfire while cold

[audi18]

Hey guys i have a 1998 audi a4 1.8t and it has a cykinder four misfire when cold
I changed plugs and coil packs and also threw in some injectors
I did a compression test and cylinder 4 was just under 200psi
Once the car warms up the misfire goes away and doesnt come back
Until the engine gets cold
Anyone know what could be my problem?
Thanks in advance

[freekonwheelz1]

Hey guys i have a 1998 audi a4 1.8t and it has a cykinder four misfire when cold
I changed plugs and coil packs and also threw in some injectors
I did a compression test and cylinder 4 was just under 200psi
Once the car warms up the misfire goes away and doesnt come back
Until the engine gets cold
Anyone know what could be my problem?
Thanks in advance

mine did this. for me, the turbo inlet hose going from the MAF to the turbo slipped off so unmetered air was entering the engine. would only misfire for the first 3 minutes or so and if i went from 3k to idle it would die. fixed the problem with upgraded hoses and T bolt clamps. if there isnt a form of boost leak, check your SAI (secondary air intake) under all the air box crap. people have had misfires from there also during warm up only. might not be your issues, but worth a shot to check!

[audi18]

Thanks! Ill have to look into that anyone else have any ideas on what could be happening?