LinkBack URL
About LinkBacks
NinaI've recently had my car serviced and it now comes up with a P0300, the service included both a timing belt and heated O2 sensor, I checked the spark plugs and they are fine. I would appreciate some help identifying the cause, thanks.
I've recently had my car serviced and it now comes up with a P0300, the service included both a timing belt and heated O2 sensor, I checked the spark plugs and they are fine. I would appreciate some help identifying the cause, thanks.
Could be the plug wires, the coil, or oil in the spark plug tubes depending on the year.
it's a 2006 I checked plugs and tubes, haven't tested the coil yet. I had an aftermarket pod filter on the car, which I reverted to standard. idles better with original airbox, but issue still persists.
To add to this, just did an IACV, and now idle is consistently at 2500-3000 rpm when I go off of the throttle.
1. My Aveo's 2007 1.2 (petrol + LPG) engine started being not so calm and car was a bit more lazy, same day engine light went on and I had the same P0300 random misfire problem showing on my OBD reader. I did some research myself and tried to replace some parts new and some used... I got new ignition module, cables and spark plugs all for 50 €, also checked injectors at the local car electrician who said they are working good. Nothing helped. Finally my mechanic was available. I told him everything I tried (some sensors replaced, which I had sitting, used). Mechanic figured one cylinder doesn't work and he checked cables going to injectors. Cable of the suspicious cylinder didn't have power. I am not sure where is power for the LPG injectors coming but mechanic opened the big power connector where power for all for injector cables comes from and one had a bad contact. He pushed it a bit and all works now. Seriously? That is it?! No engine light, problem fixed. Engine purrs.
2. My car gives one all blinker flash when I unlock it with remote, but when I lock it, it doesn't. Also lock/unlock with a key, no flash. I am pretty sure it used to give flash when unlock with a remote. Any ideas?
1. I don't think it's one cylinder. I had checked how many missfires I was getting with a diagnostic tool, and it was saying that all the cylinders were missing at various times. Which makes it seem more likely to be an ignition coil issue or maybe a crankshaft or camshaft sensor issue.
2. Could be something simple, like a battery or debris inside the key fob, probably worth checking those and seeing what happens.
Check all your connections first that s what I did to mine
This statement along with your earlier statement of a new timing belt is making me wonder if the belt was installed incorrectly causing all the misfires.Originally Posted by Jaded_Crown
I wondered that, I did a bit of research, and it sounds like I should have a noticable amount less power, which I don't. The only thing different is the idle. I wonder if while it was apart if something may have ended up stuck in the intake manifold, potentilly affecting airflow.
Whenever a new issue shows up I always ask myself what was the last thing that was done on the vehicle. A high percentage of the time the new issue is related to the last repair. In this case it’s the timing belt.
Posting Permissions
Reply With Quote
Jose
Jose