13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 running issue
Leading reported evidence
Replace crank sensor
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
when plugged in I get fault code p0336 but I have changed the crank sensor.
Leading evidence: 'Replace crank sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check continuity' (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.
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Performed · outcome unconfirmed · Original poster
no haven�t tested yet all I know is it�s definitely over fueling as it stinks like petrol when it turns over and the plugs when changed we�re wet
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Suggestion
ince you�ve got trouble code P0336 might make sense to track that by checking for continuity.
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Suggestion
Maybe you could try disconnecting BOTH battery leads, remove the battery, then connect the positive and negative cables toether to drain any capacitors.
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Suggestion
After that, reinstall the battery and reconnect the leads.
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Suggestion
Maybe you could try disconnecting BOTH battery leads, remove the battery, then connect the positive and negative cables toether to drain any capacitors.
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Suggestion
It starts because no cts signal is equivalent to an engine at Arctic winter temperature at night which obviously starts the engine when it is cold albeit very rich (hence the smell) but when it starts to warm up the amount of fuel is far too much to keep it running so it dies.
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13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261027T025149Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So I recently purchased a 1999 3.4 996 as abit of a project. the car I purchased had a running issue and I was wondering if anyone has had this issue themselves.
basically the car turns over fires up and runs very rough after about 30seconds it dies in this time it smells like very strong fuel.
so far I have changed ( coil packs / spark plugs / maf sensor / crank sensor)
I have also done a few tests and I have worked out the misfire is across both banks.
when plugged in I get fault code p0336 but I have changed the crank sensor.
Anyone have any ideas ??
next on the list is compression test
Coolant temperature sensor (cts) and/or associated wiring.
It starts because no cts signal is equivalent to an engine at Arctic winter temperature at night which obviously starts the engine when it is cold albeit very rich (hence the smell) but when it starts to warm up the amount of fuel is far too much to keep it running so it dies.
U need to buy r borrow a good scanner and start graphing the telemetry. This is the how u start to diagnose a driveabilty issue through diagnostics. Anything less then this is just a guess and without this u r wasting time and money.
We need to see fueling #s, sensor values and variocam functions.
Maybe you could try disconnecting BOTH battery leads, remove the battery, then connect the positive and negative cables toether to drain any capacitors. After that, reinstall the battery and reconnect the leads. This should reset everything to factory default settings. having the negative cable come off with the engine running can cause numerous issues.
I'm an electrical engineer and find it hard to believe there is enough stored energy in the tiny capacitors to matter, but you shouldn't have to touch the positive and negative cables together to discharge them. But do not jump them on the battery or you will have a fire. Let us know how it goes.
Update the cylinders that aren�t firing are across both banks. Coil packs and maf changed. And still flagging code p0336 even after a crank sensor change.
Testing fuel pressure will also test the regulator, at least partially. I've seen a return line get blocked causing way to high fuel pressure doing exactly what you''re saying.
Not saying this is your problem, just it should be tested to rule it out.
S
ince you�ve got trouble code P0336 might make sense to track that by checking for continuity.
The speed sensor has a couple of leads encased in a shielded cable.
You might have already done the visual inspection which could rule out damage to the cable. Checking for continuity with a digital meter would be a next step. Also X 59/2 connector could have corrosion.
Hope some of this might help.
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