by Hefty » Mon Jul 03, 2006 6:15 pm
I had the same thing happen to me about 6 months ago. Mine even completely died on me while taking a left turn through an intersection one time. Pulled into a nearby gas station and tried to crank several times and it wouldn't start. Sat for a minute and then it started up but RPM needle jumped wildly while accelerating - stuttering and hesitation.
Took it to a mechanic and they couldn't find anything wrong, ran fine on their test drives of course. To me it felt like a tuning problem or how it would feel if water had infiltrated the ignition somehow. I needed some maintenance stuff done anyways so I went ahead and had them hang a new set of plug wires, fresh plugs, timing belt/water pump, and cleaned throttle body and injectors.
Took the car home - ran fine, went to work - ran fine, but coming home from work that next day - stutter stutter. Then, it compltelye stopped stuttering and never came back. However, the engine never really seemed to be running as smoothe as when I first got the car. Then, one day about 4 weeks ago the CEL light came on, checked the codes and had a Bank 1 Sensor 1 O2 heater failure. I replaced the sensor and the car instantly ran better and still not even a hint of a stutter.
So, it seems for me that cleaning the throttle probably helped get rid of the worse of it. But my guess is that the O2 sensor was probably borderline going out for a while as well. When I checked the bad sensor's heater resistance it read 0 OHMS which means the circuit was completely broken. Before that happened it was probably reading off spec resistance but the computer wasn't throwing a code till the circuit was completely wasted.
117,000 -- no mods -- '99 SE V6
Took it to a mechanic and they couldn't find anything wrong, ran fine on their test drives of course. To me it felt like a tuning problem or how it would feel if water had infiltrated the ignition somehow. I needed some maintenance stuff done anyways so I went ahead and had them hang a new set of plug wires, fresh plugs, timing belt/water pump, and cleaned throttle body and injectors.
Took the car home - ran fine, went to work - ran fine, but coming home from work that next day - stutter stutter. Then, it compltelye stopped stuttering and never came back. However, the engine never really seemed to be running as smoothe as when I first got the car. Then, one day about 4 weeks ago the CEL light came on, checked the codes and had a Bank 1 Sensor 1 O2 heater failure. I replaced the sensor and the car instantly ran better and still not even a hint of a stutter.
So, it seems for me that cleaning the throttle probably helped get rid of the worse of it. But my guess is that the O2 sensor was probably borderline going out for a while as well. When I checked the bad sensor's heater resistance it read 0 OHMS which means the circuit was completely broken. Before that happened it was probably reading off spec resistance but the computer wasn't throwing a code till the circuit was completely wasted.
117,000 -- no mods -- '99 SE V6
1999 Solara SE V6
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2003 Nissan 350Z Track
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2003 Nissan 350Z Track
- Hefty
- Just Licensed SolaraGuy
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- Joined: Fri Aug 26, 2005 8:40 am