My car has been acting wonky lately. I've had the limp mode issue a few times in the past over the 12 years I've owned my Aero (like less than 5...), but for the past month or two it's been steadily getting worse and now it goes into limp mode (+ CEL) almost every day, or at least every time I use the car. Sometimes the engine check light comes on when it goes in limp mode, sometimes not immediately... sometimes the limp mode resolves itself after a few minutes, over times it only resolves itself when I clear the CEL code.
I've had the following error codes: P2138 (throttle/pedal position sensor / voltage), P2122 (same but circuit low input), P0101 (mass or volume air flow circuit range/performance, got this one a lot too, actually I think I get this one the most), and also P0300 (random/multiple cylinder misfire, also got this one quite a bit).
Car symptoms are of course the wonky acceleration when in limp mode, but it seems to me that when I start it, the idle RPMs are also kind of on the high side (it's cold these days but it seems they're higher than usual), or sometimes the engine runs a bit rough upon starting (usually runs super smooth), the engine has even flat-out stopped yesterday when I pulled over in my daughter's friend's driveway to drop her off (restarted right away but still, never happened before), gas mileage has taken a bit of a nosedive, and sometimes when I accelerate the engine feels like it cuts off for a split second every now and then. Car has 158k miles. Although it's probably unrelated, I also feel like the clutch is slipping a bit: if I'm in any gear over than first, any firm acceleration is usually followed by a quick spike in RPMs before they go back down and the car actually starts accelerating. I'm guessing the clutch is going... but it's still working.
Anyway, it looks like my symptoms point to either a dirty or failing (more likely considering the mileage) Mass Air Flow sensor. I'd just like to be a little more sure before I order a new one... could the throttle body be involved as well? I've ready that the P2122 code might be caused by a faulty connection in the throttle body but I never bothered to investigate... For sure I'll clean it asap see if it helps, I've found some instructions here.
Thanks in advance for any help. My son's learning to drive on it, he's living the dream, he's been foaming at the mouth to drive the car for years and I promised him he'd inherit it when he has his license so I want to keep it in good working shape. :-D
Edit: I've cleaned the MAF sensor just now, we'll see if it gets better or if the problem keeps happening...
I've had the following error codes: P2138 (throttle/pedal position sensor / voltage), P2122 (same but circuit low input), P0101 (mass or volume air flow circuit range/performance, got this one a lot too, actually I think I get this one the most), and also P0300 (random/multiple cylinder misfire, also got this one quite a bit).
Car symptoms are of course the wonky acceleration when in limp mode, but it seems to me that when I start it, the idle RPMs are also kind of on the high side (it's cold these days but it seems they're higher than usual), or sometimes the engine runs a bit rough upon starting (usually runs super smooth), the engine has even flat-out stopped yesterday when I pulled over in my daughter's friend's driveway to drop her off (restarted right away but still, never happened before), gas mileage has taken a bit of a nosedive, and sometimes when I accelerate the engine feels like it cuts off for a split second every now and then. Car has 158k miles. Although it's probably unrelated, I also feel like the clutch is slipping a bit: if I'm in any gear over than first, any firm acceleration is usually followed by a quick spike in RPMs before they go back down and the car actually starts accelerating. I'm guessing the clutch is going... but it's still working.
Anyway, it looks like my symptoms point to either a dirty or failing (more likely considering the mileage) Mass Air Flow sensor. I'd just like to be a little more sure before I order a new one... could the throttle body be involved as well? I've ready that the P2122 code might be caused by a faulty connection in the throttle body but I never bothered to investigate... For sure I'll clean it asap see if it helps, I've found some instructions here.
Thanks in advance for any help. My son's learning to drive on it, he's living the dream, he's been foaming at the mouth to drive the car for years and I promised him he'd inherit it when he has his license so I want to keep it in good working shape. :-D
Edit: I've cleaned the MAF sensor just now, we'll see if it gets better or if the problem keeps happening...
