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Old 07-27-2008, 02:27 PM   #1
hettchen
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Member#: 155169
Join Date: Jul 2007
Chapter/Region: TXIC
Location: Western Kansas
Vehicle:
2006 sti fp red alky
awdtuning.com 11.6@119mph

Default crank position sensor cel. tuning in progress please help

just had an axis stage 3 block installed at my local subaru shop in ks. in dallas for tuning right now. the crankshaft position sensor cel is on and as u can imagine our logs are incredibly jumpy. ecu is new and sensor is good. timing marks were dead on at tdc. the subaru dealership spliced all my new wiring harnesses into the old ones. i just need to make this 1 sensor work so the car can be tuned and go bak to ks. And then ima have a lil chat with subaru!!
580 515 7093
robert

thanks
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Old 07-27-2008, 07:15 PM   #2
JSarv
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Member#: 163445
Join Date: Nov 2007
Chapter/Region: MWSOC
Location: Effingham IL (Central IL)
Vehicle:
l33t *******
12.07@115.9mph-EJ205

Default

Have you tested the feed at the ecu? I'd say there is a bad connection. Is the CPS a 2 or 3 wire sensor. Are the grounds good? CPS sensors are very sensitive to noise, if shielded wire was not used, especially when spliced, they will pick up noise and throw CEL's and do crazy crazy things.
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Old 07-28-2008, 01:03 AM   #3
hettchen
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Member#: 155169
Join Date: Jul 2007
Chapter/Region: TXIC
Location: Western Kansas
Vehicle:
2006 sti fp red alky
awdtuning.com 11.6@119mph

Default

ok ok. how about this? not all the wires are spliced but. I did have a perrin lightwieght crank pulley and a 11 pound flywheel installed. I just read Unabombers sticky on the flywheels and it was like textbook. I put my stock pulley back on and there was improvement in my logs. tomorow I will install my stock flywheel.
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Old 07-28-2008, 07:14 PM   #4
hettchen
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Member#: 155169
Join Date: Jul 2007
Chapter/Region: TXIC
Location: Western Kansas
Vehicle:
2006 sti fp red alky
awdtuning.com 11.6@119mph

Default

got the lightweight flywheel out and stock one back in. didnt fix nothing.
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