24 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHStarting issue
Leading reported evidence
Replace starter and all has been perfect
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I replaced the starter and all has been perfect for 3 years now.
Leading evidence: 'Replace starter and all has been perfect' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'cps (crankshaft position sensor)' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check before i dig into it' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
If the starter is spinning normally and engaging, engine turns over but you have a "no fire in the hole" start, more than likely the culprit is the CPS (crankshaft position sensor).
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
If the starter is spinning normally and engaging, engine turns over but you have a "no fire in the hole" start, more than likely the culprit is the CPS (crankshaft position sensor).
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Besides the CPS is there anything else to check for before i dig into it?
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Bad connections - clean battery terminals and cables, check and clean battery ground and engine ground wires, make sure there is no corrosion at the grounding points
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
What I was experiencing was sometimes when cold or hot (not always) I would take a lil longer than normal to turn over....while doing normal maint to car oil, filter etc I changed spark plugs.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I have a 2007 Targa 4S that has become "difficult" to start after having been stopped after driving 5-10 miles, running an errand and coming out and attempting to restart the car.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
cps (crankshaft position sensor)
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
If the starter is spinning normally and engaging, engine turns over but you have a "no fire in the hole" start, more than likely the culprit is the CPS (crankshaft position sensor).
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
If the starter is spinning normally and engaging, engine turns over but you have a "no fire in the hole" start, more than likely the culprit is the CPS (crankshaft position sensor).
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
24 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Fuel Pressure Sensor for Fuel Tank 996-606-205-00 fixed the issue.
I have a 2007 Targa 4S that has become "difficult" to start after having been stopped after driving 5-10 miles, running an errand and coming out and attempting to restart the car.
The battery has been checked and the tests show that the battery is strong.
During this difficult restart, the car will "misfire" and stop the start cycle and the spinning of the engine. Other times it simply won't fire.
Turning the key off and attempting to restart again will usually start on the second try. Sometimes it takes a third try.
The car starts flawlessly whenever it is cold.
What's going on and what's the "fix?"
Maybe it's not done resting yet!
Mine takes longer to start sometimes after sitting a few hours. Normal when cold or warm. Sometimes injectors can bleed down causing that. For me it's not something I'm actively worried about just yet.
Not sure if this helps but my 996 4s was sometimes having starting issue. Right before I purchase dealer put new battery so I knew that was good. What I was experiencing was sometimes when cold or hot (not always) I would take a lil longer than normal to turn over....while doing normal maint to car oil, filter etc I changed spark plugs. All plugs looked original and in normal shape for the mileage, but once I replaced them my startup issue went away..now it usually turns over in to clicks...maybe might be same for u...just my experience. I would think poor spark would also cause a misfire as well...cheaper to start with plugs before u interrogate coil packs.
Battery - you've eliminated this by having it checked.
Ignition switch - maybe, but I don't think from what you said it is this
Bad connections - clean battery terminals and cables, check and clean battery ground and engine ground wires, make sure there is no corrosion at the grounding points
Starter - probably looking at a new starter/solenoid. When mine went bad it always started when cold. As the engine got hot the starter got heat soaked and failed. Most of the time when hot it would just go "clunk" and then nothing. Would often take 3-4 start attempts before it would engage, or I had to wait 20-30 minutes for it to cool down before it would start. I replaced the starter and all has been perfect for 3 years now. Never fails to start first time hot or cold.
Are you getting any CEL's? If it is failing to start due to engine ECU management, perhaps a CEL code is getting thrown that may help you diagnose.
I had a similar issue in my 99 and read lots of stuff about a heat soaked starter.
Possible culprits include the wiring from the battery to the starter, the starter itself and the CPS as indicated above.
My mechanic replaced the wiring from the battery to the starter. Didn't resolve the issue though. It was really frustrating. I was going to have him dive back in there but an unplanned but smoothly executed wheel/roof inversion event mooted the issue.
By "misfire" what do you mean? Does the CEL come on and are there misfire error codes available? Or does the exhaust backfire or do you hear the intake spitting back?
it was very easy on my MB. I just looked on pelicanparts.com for info on the Porsche. It's located on the cylinder head, held in by a torx screw. Looks to be a quick DIY once you locate it.
Figure #4 here
http://www.pelicanparts.com/techarti...ne_Sensors.htm
It shows a 996 but yours should be similar.
When the engine fails to fire, does the starter spin slower than normal or it's spinning at normal speed but the engine just would not fire?
Pay attention to the tach needle next time you crank and see if it bounces. If it does NOT, definitely you have a problem with the CPS or its wires. If it bounces, it's not conclusive.
Do you suspect the starter meaning does the starter ever quite spinning when the key is engaged?
As others have caught my forgetful omission of the CPS, sorry forgot about that, I think they are correct. If the starter is spinning normally and engaging, engine turns over but you have a "no fire in the hole" start, more than likely the culprit is the CPS (crankshaft position sensor). Check wiring to the CPS as well.
Im having this hard start issue too, but its very intermittent. This has happened 3 times already after a short drive and the car sitting over an hour. The starter will spin maybe for about 20 seconds before it fires. Feels like not getting any fuel. Besides the CPS is there anything else to check for before i dig into it? Oh and no CEL or misfires
Twenty seconds of cranking is a long time! Mine fires in like two seconds of starter engagement. If the starter is engaged and the engine is cranking over, but not firing - CPS is suspect, and fuel pump, fuel filter.
I had this issue a year ago or so.
https://rennlist.com/forums/996-foru...-starting.html
Fuel Pressure Sensor for Fuel Tank 996-606-205-00 fixed the issue.
Thanks rb101
My car has less then 70k miles on it. I will look into fuel pump relay as its a lot cheaper and if it does't fix my problem then ill go after the Fuel Pressure Sensor. Hopefully it will be one of those two as its a lot easier to switch out then a CPS.
996pp, you may want to check this thread:
https://rennlist.com/forums/996-foru...er-1-hour.html
See if that OPs description matches yours.
I don't think that applies to this OPs issue though. There is no mention of misfires in that thread. This sounds more like a CPS or plug/coil issue to me.
