I'll give a little background on the car... '01 with about 140,000 miles on it. Last September it snapped a tensioner, and sat for several months before we tore everything apart. We replaced the timing chains, guides, and tensioners. After all that, it ended up not starting. So we replaced the fuel pump, fuel filter, and threw in new spark plugs as well.
It runs incredibly smooth now. Smoother than ever, but every so often, when I come to a stop, it'll have a slight miss or shake to it. Less often, when going from 40ish-60ish it has a stutter to it that is more noticeable, and it also is experiencing a loss of power in general. It just doesn't accelerate like it used to. We tried fuel injector cleaner, and that helped clear up the miss it had when we first got it running again. Cleaned the mass air flow sensor, and that didn't help at all. We noticed that there was a little sputtering coming out the drivers side exhaust when it would hesitate, so we moved all the coils from the drivers side to the passengers, and vice-versa, and the drivers side exhaust still displays the puttering, so it's not the coils. That led us to believe it was the fuel injectors, tested 'em with the ohm reader and they tested fine, but maybe they're clogged from dirt getting in the line when it was disconnected? Anyway, it's not throwing a CEL light for this, and I'm really puzzled as to what this could be. One or two people said maybe we did the timing chain wrong, but I don't think that's the case because I would expect it to be more consistent like it was when the tensioner snapped and the chain skipped a tooth, and besides the slight shake that only happens every so often, the car runs quiet and better than ever. Any help or advice on what to look for would be gladly appreciated.
It runs incredibly smooth now. Smoother than ever, but every so often, when I come to a stop, it'll have a slight miss or shake to it. Less often, when going from 40ish-60ish it has a stutter to it that is more noticeable, and it also is experiencing a loss of power in general. It just doesn't accelerate like it used to. We tried fuel injector cleaner, and that helped clear up the miss it had when we first got it running again. Cleaned the mass air flow sensor, and that didn't help at all. We noticed that there was a little sputtering coming out the drivers side exhaust when it would hesitate, so we moved all the coils from the drivers side to the passengers, and vice-versa, and the drivers side exhaust still displays the puttering, so it's not the coils. That led us to believe it was the fuel injectors, tested 'em with the ohm reader and they tested fine, but maybe they're clogged from dirt getting in the line when it was disconnected? Anyway, it's not throwing a CEL light for this, and I'm really puzzled as to what this could be. One or two people said maybe we did the timing chain wrong, but I don't think that's the case because I would expect it to be more consistent like it was when the tensioner snapped and the chain skipped a tooth, and besides the slight shake that only happens every so often, the car runs quiet and better than ever. Any help or advice on what to look for would be gladly appreciated.
