Revising an LS-VTEC build

B16, B18, B20
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By Leppy
- Thu Jan 02, 2014 4:27 am #340902
cleanb18eg wrote:Did the ecu throw any cel codes?


o2 sensor. Everything else on the motor checks out so far, minus a vacuum leak at the throttle body.

I'm gonna just do some old fashioned rechecking of everything and then probably find a tuner.
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By cleanb18eg
- Thu Jan 02, 2014 4:58 am #340904
Leppy wrote:
cleanb18eg wrote:Did the ecu throw any cel codes?


o2 sensor. Everything else on the motor checks out so far, minus a vacuum leak at the throttle body.

I'm gonna just do some old fashioned rechecking of everything and then probably find a tuner.


If everything checks out the tuner should be able to correct it.

By bks84
- Thu Jan 02, 2014 9:43 pm #340918 Im assuming youve double checked timing? (mechanical and ignition [w/timing light])...
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By Leppy
- Thu Jan 02, 2014 9:48 pm #340919
bks84 wrote:Im assuming youve double checked timing? (mechanical and ignition [w/timing light])...


Mechanical timing was spot on. I pulled the distributor for a rebuild already, but I do have a light to check it with when I'm satisfied with putting it back on.

By bks84
- Thu Jan 02, 2014 9:59 pm #340921 should be set at 16* BTDC. I think. lol.
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By Leppy
- Sat Jan 04, 2014 12:49 am #340961 I found out there was a short in the wires from the 'wire tuck' that involved frakin' spade connectors! They were touching together, shorting out the coolant temp sensor below the distributor throwing a code 6.

Rebuilt the harness and the connector with new pins, but the code is still there. I suspect the sensor itself bit the farm, so i'm gonna buy a new one.

I'm pretty sure that explains why it's dumping fuel and it has issues starting when cold.
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By Leppy
- Tue Jan 07, 2014 11:12 pm #341093 Found the major issue. Code 6 ECT was because the connectors were swapped between the ECT sensor and what I think is an oil pressure sensor.

Swapped them over, reset the ECU, and tested it. Starts every time, idle is perfect, and runs quieter and smoother.

Still not quite as fast as the GSR, but it's mean sounding and worthy of keeping around again.
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By Uknterror
- Wed Jan 08, 2014 3:18 am #341104 Good stuff!
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