S2000 Under The Hood S2000 Technical and Mechanical discussions.

MY02 Cranking, but no start?

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Old 11-27-2003, 11:15 AM
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Originally posted by RedY2KS2k
Someone else posted a thread a while back where they had a problem with the TDC sensor(s) at the back of the head. Since you had the head off and installed new cams, it might be worth finding that thread.
That was Turbo pwr's car. It would start fine, Just not run over 6000rpm. It also threw a P01361.
Old 11-27-2003, 11:57 AM
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Do you have any sparks? Take one of the cable out along w/ the plug and test to see if there's any sparks.
Old 11-27-2003, 01:31 PM
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[QUOTE]Originally posted by Grazhoppa
Do you have any sparks?
Old 11-27-2003, 03:29 PM
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marcucci - are you getting a hard CEL? Have you used a scanner to check for non-CEL codes? I think you have discombobulated the ECM from gross sensor mis-inputs, and it is just giving up and not letting the car start, perhaps as a safeguard. I still think either a wire is disconnected, misconnected, or a sensor(s) has gone south. Can you trace back from the things you disconnected, checking electrical continuity, and running any DIY tests (like resistance, operating voltages for sensor (example: .1- 1.5 VDC), etc? You will really need a shop manual, some careful reading, or a system that can access the diag link real time. (OBD 2 scanner). Good Luck!
Old 11-28-2003, 06:56 AM
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Thanks for the feedback, guys...

- I have not checked fuses. It would be VERY odd for me to have coincidentally popped one, but I will go through all of them when I get back in town.

- The single click under the dash for the cruise is just the cruise relay disengaging. Shouldn't be related.

- I think the fuel pump relay is fine, at least, the relay itself should be good. I have never seen a failure this early in a Honda's life. Not that it couldn't be, but I am getting fuel (wet plugs) and I can hear the pump spool. If it is fuel related then I think it is because the fuel pump relay is dropping out due to a voltage problem (low battery). I've now cranked the car a lot and the battery is definitely weak. Next step will be to swap the battery with a good one and see if that helps. Jumping from another vehicle did not.

- The TDC sensors are installed, connected, and the corresponding cam teeth are installed and oriented correctly. I haven't checked the CKP sensor but it's on the list when I get back.

- Slows2k: I specifically do NOT remember reattaching that ground. We may have found the problem. I remember having a B!TCH of a time getting that ground and the corresponding wiring plate off... and I know I didn't put it back on. Thanks!

I checked for spark with an inductive light and couldn't get it to trigger... so I don't think there was spark. My guess is that if the ECM's ground is that 101 then it was probably not delivering spark OR relays were dropping out. Either way I didn't have the immobilizer flashing at me, but I know the ground was not connected.

Thanks guys... I should have it running shortly after I get back. I will post back to let you know for sure.
Old 11-28-2003, 02:13 PM
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I can just about gaurantee that the car will run (as long as everything else is done right) as soon as you reattach the ground. G101 on the S is definitly a B*tch, right up against the firewall on the back of the cylinder head. Most other Honda's use the thermostat housing for G101.
Old 11-30-2003, 03:03 PM
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Reattached G101 and she started up and runs great. Thanks for the reminder!
Old 11-30-2003, 03:09 PM
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All is good
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