1995 sl1: hesitation, lurching, faulty tach...
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1995 sl1: hesitation, lurching, faulty tach...
and stalling at idle. This just happened after I replaced the battery and underwent annual tune up (had been running just fine before this). Service Engine Soon light came on, drove it again and light went off but still having the same issues. Took it to the same mechanic and he said he wasn't reading any codes, but was going to investigate further. I wonder about the lack of codes. Anyway, couple years ago I had a similar issue and it turned out to be the ECTS. I wonder if it's in that vein or possibly EGR, maybe throttle position? Just wondering so I can talk intelligently with him.
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Joined: Jul 2005
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95 is OBD I and while the codes might help, they are few and far between and in my experience are hardly ever set except for the EGR codes.
1). Take out whatever crap plug is in there and put in the stock NGK 7755 copper plugs (BKR4ESA11). Mechanics who do not work on older Saturn's do not understand the importance of this. Owners of older Saturns DO.
How does it run now?
2) did you change the two wire ECTS or the 1 wire ECTS? Two wire talks to the PCM, 1 wire drives the gauge on the dash.
3) have you ever pulled off the EGR valve to clean it? How many miles are on the car and how many miles are on that EGR valve? The carbon buildup will keep the pintle from moving freely which will mess up when it is open and when it is closed or when it thinks it is closed but is not or when it thinks it is open but is not.
4) If the throttle body was cleaned by shooting throttle body cleaner in there, the dissolved carbon has to go somewhere. If the throttle body is sufficiently filthy, the carbon may eventually find its way to the EGR. If you burn a lot of oil you will have the same carbon build-up issues.
But go for the plugs and confirm which ETCS replaced as your first step.
Also, there is nothing I am going to suggest that you cannot do yourself. No need to pay someone to do it.
1). Take out whatever crap plug is in there and put in the stock NGK 7755 copper plugs (BKR4ESA11). Mechanics who do not work on older Saturn's do not understand the importance of this. Owners of older Saturns DO.
How does it run now?
2) did you change the two wire ECTS or the 1 wire ECTS? Two wire talks to the PCM, 1 wire drives the gauge on the dash.
3) have you ever pulled off the EGR valve to clean it? How many miles are on the car and how many miles are on that EGR valve? The carbon buildup will keep the pintle from moving freely which will mess up when it is open and when it is closed or when it thinks it is closed but is not or when it thinks it is open but is not.
4) If the throttle body was cleaned by shooting throttle body cleaner in there, the dissolved carbon has to go somewhere. If the throttle body is sufficiently filthy, the carbon may eventually find its way to the EGR. If you burn a lot of oil you will have the same carbon build-up issues.
But go for the plugs and confirm which ETCS replaced as your first step.
Also, there is nothing I am going to suggest that you cannot do yourself. No need to pay someone to do it.
Last edited by derf; Feb 2, 2020 at 04:22 AM.
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