05-19-2015, 04:55 PM
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#1
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Car will not start?
On stands for 4 months now. Sheesh.
Got trans in today, and all smooth. Wanted to fire up motor but no exhaust yet.
Turns over great. Will not even try to start. Ideas?
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-19-2015, 05:38 PM
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#2
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Multi-Boxer Driver
Join Date: Nov 2010
Location: Orange Park, FL
Posts: 1,422
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Does the tach move?
If so, then check for pressure on the fuel rail in the engine bay.
__________________
-Chris
2004 Porsche Boxster 2.7 (gone  )
2004 Porsche 911 C4S Cab
1991 Porsche 911 C2 Targa 3.6
2017 Subaru Outback 3.6R
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05-19-2015, 05:57 PM
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#3
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Registered User
Join Date: Sep 2012
Location: Guelph, ON
Posts: 981
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Quote:
Originally Posted by Timco
On stands for 4 months now. Sheesh.
Got trans in today, and all smooth. Wanted to fire up motor but no exhaust yet.
Turns over great. Will not even try to start. Ideas?
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Check to make sure your CPS (Crank Position sensor) is plugged in properly and make sure its not defective...
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Previously owned:
2000 Boxster S 3.2 Ocean Blue / 1974 911 Targa Silver
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05-19-2015, 06:18 PM
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#4
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by Deserion
Does the tach move?
If so, then check for pressure on the fuel rail in the engine bay.
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Didn't notice actually. What if it doesnt?
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-19-2015, 06:19 PM
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#5
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by Heiko
Check to make sure your CPS (Crank Position sensor) is plugged in properly and make sure its not defective...
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I wiped it off really well inside. Didn't check to see if plugged in.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-19-2015, 06:22 PM
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#6
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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See if the thing is firing, if not, well there are quite a few posts indicating how easy it is to bend a couple of the flywheel tabs making it hard for the crank position sensor to read the position of the crankshaft.
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05-19-2015, 06:26 PM
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#7
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by healthservices
See if the thing is firing, if not, well there are quite a few posts indicating how easy it is to bend a couple of the flywheel tabs making it hard for the crank position sensor to read the position of the crankshaft.
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The Flywheel is brand new, and great care was taken to set it gently down.
Not even a sputter. Just turns over smooth.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-19-2015, 06:29 PM
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#8
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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Start with the basics then, look for fuel pressure, spark, and compression
Sent from my SM-T310 using Tapatalk
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05-20-2015, 04:41 AM
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#9
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Tach moves. I can smell gas. No ignition. Wanted to get it started before 100% reassemble.
Guess I'll start with fuel pressure. What's the best way to check for spark?
Ran perfect before IMS and trans R & R. Checked timing. Was perfect after two spins.
Pulled CPS. Still magnetic but looking for a new one now.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
Last edited by Timco; 05-20-2015 at 06:16 AM.
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05-20-2015, 06:46 AM
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#10
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by healthservices
See if the thing is firing, if not, well there are quite a few posts indicating how easy it is to bend a couple of the flywheel tabs making it hard for the crank position sensor to read the position of the crankshaft.
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Just used an inspection camera and checked all the way around. Perfect.
Just need to find a CPS local. Don't know how to bench test it.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-20-2015, 07:15 AM
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#11
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Registered User
Join Date: Sep 2012
Location: Guelph, ON
Posts: 981
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If you have a Ohm meter, pull the connector and put probes into pin 1 and 2 you should read around 800-1000 ohms, then repeat the same test for pin1 and 3 and it should show infinite (meaning open/as if not touching). If either of these is not the case I would replace the CPS.
Hope that helps
H
__________________
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Previously owned:
2000 Boxster S 3.2 Ocean Blue / 1974 911 Targa Silver
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05-20-2015, 08:02 AM
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#12
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
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Quote:
Originally Posted by Timco
The Flywheel is brand new, and great care was taken to set it gently down.
Not even a sputter. Just turns over smooth.
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Let me guess: an aftermarket lightweight flywheel......
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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05-20-2015, 08:56 AM
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#13
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by JFP in PA
Let me guess: an aftermarket lightweight flywheel......
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No. OEM from Pelican as part of a master kit. DMF
CPS ohms exactly as described above. Will reinstall.
Used a color inspection camera and looked at all the teeth on the flywheel. They are right there and perfect.
Thanks.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
Last edited by Timco; 05-20-2015 at 09:11 AM.
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05-20-2015, 11:20 AM
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#14
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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New clue. Windows do not drop when door is opened.
No moisture in immobilizer / alarm possible.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-20-2015, 11:30 AM
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#15
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Registered User
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
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Fuel pressure and spark. Standard Schrader valve pressure tester.
__________________
Death is certain, life is not.
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05-20-2015, 12:41 PM
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#16
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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Quote:
Originally Posted by Timco
New clue. Windows do not drop when door is opened.
No moisture in immobilizer / alarm possible.
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Hmmm. Some of the immobilisers have a fuse on the unit itself
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05-20-2015, 12:43 PM
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#17
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by woodsman
Fuel pressure and spark. Standard Schrader valve pressure tester.
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What is the procedure for testing for spark?
I'm here late tonight to fix this.
I can smell gas from exhaust, but have not checked pressure yet. Ran 100% perfect before this.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-20-2015, 01:10 PM
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#18
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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I do it cave man style, pull out a coil, stick a spark plug on it, ground the outside of the plug, and have someone crank while I look for spark at the plug.
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05-20-2015, 02:56 PM
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#19
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Registered User
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
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Quote:
Originally Posted by healthservices
Hmmm. Some of the immobilisers have a fuse on the unit itself
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But if it WAS the immobilizer would the engine crank over?
__________________
Death is certain, life is not.
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05-20-2015, 03:03 PM
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#20
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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Dunno, can't remember that far back.. I guess I'm the beginning stages of Alzheimers. Been more than two years when I had a issue with an immobilizer
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