Heyyyy. I bought this 2013 Crosstrek a couple months ago with lots of issues. It had this air/vacuum/fuel issue when I purchased it but since I paid so little for it, I figured I could fix the issue.
While driving, it shudders as if it’s not getting enough air or maybe fuel. When I disconnect the MAF, it runs better but then throws a code. No code otherwise. I replaced the MAF but no change. I checked all 5 of the wires for the MAF harness and they are intact. I’ve replaced the throttle body, numerous sensors, spark plugs, rear CAT, etc. I’ve checked all the hoses. I can’t figure out what the issue is. Maybe ECM? But I don’t want to keep replacing parts and just spitting in the wind. It idles fine right at 500rpm. I was shuddering at idle but since I replaced the MAF, it now only shudders while driving
While driving, it shudders as if it’s not getting enough air or maybe fuel. When I disconnect the MAF, it runs better but then throws a code. No code otherwise. I replaced the MAF but no change. I checked all 5 of the wires for the MAF harness and they are intact. I’ve replaced the throttle body, numerous sensors, spark plugs, rear CAT, etc. I’ve checked all the hoses. I can’t figure out what the issue is. Maybe ECM? But I don’t want to keep replacing parts and just spitting in the wind. It idles fine right at 500rpm. I was shuddering at idle but since I replaced the MAF, it now only shudders while driving