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04-13-2007, 10:12 PM
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#1 | ||||
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Member
 Join Date: Jan 2007
Location: Ft. Worth, TX
Posts: 235
1993 SC2
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crank position sensor
What are the symptoms of a bad CPS besides not starting when warm?
Will it idle rough at operating temp? Will it run rich? Will it throw a code 45? ... "it's not that i like to pick on Hondas, but it's so easy..."
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04-13-2007, 10:16 PM
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#2 | ||||
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Senior Member
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Re: crank position sensor
Generally when the crank position sensor fails the engine doesn't run. The computer thinks the engine has stopped turning so it turns off the fuel.
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04-13-2007, 10:16 PM
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#3 | ||||
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Senior Member
Join Date: Nov 2006
Location: Near Saratoga, NY
Posts: 1,138
1995 SL1
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Re: crank position sensor
I don't think so...
If its running rich at start up... the first item to look at is the ECTS.. Your code 45 is an EGR issue...
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04-13-2007, 11:46 PM
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#4 | ||||
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Super Member
 
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Re: crank position sensor
Actually a code 45 indicates a rich condition. Main cause of is a bad coolant temp sensor.
... A lousy day in paradise is still a day in paradise.
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04-13-2007, 11:48 PM
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#5 | ||||
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Member
Join Date: Jan 2007
Location: Ft. Worth, TX
Posts: 235
1993 SC2
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Re: crank position sensor
the ECTS and connector is new. EGR and every other sensor on the car is new, cant figure this out
... "it's not that i like to pick on Hondas, but it's so easy..."
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04-13-2007, 11:50 PM
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#6 | ||||
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Member
Join Date: Jan 2007
Location: Ft. Worth, TX
Posts: 235
1993 SC2
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Re: crank position sensor
is it possible my coil packs are not firing hot enough?
... "it's not that i like to pick on Hondas, but it's so easy..."
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04-14-2007, 12:38 AM
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#7 | |||||
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Member
Join Date: Aug 2005
Location: Maricopa County, Arizona
Posts: 208
1993 SW2
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Re: crank position sensor
Quote:
... 1993 SW2, 1996 Dodge Cummins
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04-14-2007, 03:10 AM
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#8 | ||||
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Member
Join Date: Jan 2007
Location: Ft. Worth, TX
Posts: 235
1993 SC2
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Re: crank position sensor
I got a Autozone ECTS, and the connections are good. I can't figure why it runs rich. Only when warm, when cold, it runs great, it's almost as if the ECM isn't changing the amount of fuel from startup to operating temp.
... "it's not that i like to pick on Hondas, but it's so easy..."
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04-14-2007, 07:44 AM
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#9 | ||||
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Senior Member
Join Date: Jul 2005
Location: Northern Virginia
Posts: 1,598
1998 SL2
1995 SL2
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Re: crank position sensor
It really sounds like you have either the wrong sensor or it is not connected properly.
There are two sensors in the head of a 91-95. They look very similar but are very different. 1. The ECTS (Saturn part# 21025106) is the one with the two wire connected to it. It is usually in the lower part of the head. 2. The Temperture Gauge sensor (Saturn part# 21020124) is the one with the single wire connected to it. It is usually in the upper part of the head. The connectors are keyed different but can be connect to the wrong sensor. (Yea, I did this once) Also the variable resistance level is totally different between the two sensors. Last thought. Is your IAT sensor connected? With an open IAT the engine thinks that it is freezing outside and runs very rich. Really get terrible gas milage too. ... "When you stop to fill up on oil, don't forget to check the gas" 98 SL2 MT 213K+ Daily Driver 38+ mpg 97 SL2 AT 150K Original Owner 95 SL2 MT 220K+ My Saturns have BRASS ones!
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04-14-2007, 02:37 PM
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#10 | ||||
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Super Member
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Re: crank position sensor
Does the FAN kick on when you expect it to?
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04-15-2007, 01:52 PM
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#11 | ||||
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Member
Join Date: Jan 2007
Location: Ft. Worth, TX
Posts: 235
1993 SC2
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Re: crank position sensor
i have a manual fan. but it used to.
... "it's not that i like to pick on Hondas, but it's so easy..."
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