Engine revving by itself
Posted: 09/02/21 22:04
Hi all,
Been over a year and I still havent done anything to my car but when it stops snowing here I'm going to try start on her (YouTube made me think project cars r cheap oh how wrong I was) but I need some advice. Now I'm only 16 but in saying that Id consider my knowledge of cars and engines to be pretty good, no mechanic but at the same time I could probably do the basics and a bit more. The thing is though I don't have a eeefin clue what the hell is wrong with my car . The issue is when I start the car even a cold start, it will immediately start idling at 2k RPM (which sounds like s**t cause my manifold is cracked) and then it will after about 20 seconds it will start revving to 3k and drop to about 1500RPM and rev to 3k again and will keep doing that until you turn off the car. Sometimes after warming up it will barely idle about 800RPM and sound like its struggling to idle. If I unplug the Air flow meter (the one on the throttle body) The car will just idle at 2k instead of jumping up and down.
I have read its just the sensor but Also read about these screws that can adjust idle but the screws really shouldn't be touched unless u know what your doing.
I've also read that the cooling system could cause this and I am pretty sure my radiator is leaking but if it was that it would still idle weird even if I unplug the AFM right?
Since I on quite a tight budget and I mean tight, I dont wanna go spend money on sensors and stuff until I have a decent idea that they may cause that.
If you can help me figure out whats wrong with my poor MRpoo, I'd appreciate it sooooooo much.
Thank you lads (and ladies if their is any on this site )
Edit : changed the title after reading the big red box saying putting help in your title is bad
Been over a year and I still havent done anything to my car but when it stops snowing here I'm going to try start on her (YouTube made me think project cars r cheap oh how wrong I was) but I need some advice. Now I'm only 16 but in saying that Id consider my knowledge of cars and engines to be pretty good, no mechanic but at the same time I could probably do the basics and a bit more. The thing is though I don't have a eeefin clue what the hell is wrong with my car . The issue is when I start the car even a cold start, it will immediately start idling at 2k RPM (which sounds like s**t cause my manifold is cracked) and then it will after about 20 seconds it will start revving to 3k and drop to about 1500RPM and rev to 3k again and will keep doing that until you turn off the car. Sometimes after warming up it will barely idle about 800RPM and sound like its struggling to idle. If I unplug the Air flow meter (the one on the throttle body) The car will just idle at 2k instead of jumping up and down.
I have read its just the sensor but Also read about these screws that can adjust idle but the screws really shouldn't be touched unless u know what your doing.
I've also read that the cooling system could cause this and I am pretty sure my radiator is leaking but if it was that it would still idle weird even if I unplug the AFM right?
Since I on quite a tight budget and I mean tight, I dont wanna go spend money on sensors and stuff until I have a decent idea that they may cause that.
If you can help me figure out whats wrong with my poor MRpoo, I'd appreciate it sooooooo much.
Thank you lads (and ladies if their is any on this site )
Edit : changed the title after reading the big red box saying putting help in your title is bad