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Old 02-27-2011, 04:31 PM   #1
Scooby Newbie
Member#: 72665
Join Date: Oct 2004
Chapter/Region: South East
Location: Greenville, SC
2002 wrx wagon
whtie, 6MT, vf22

Default My P1507 and P0507 throttle cable solution.

So I got these codes after I had my manifold off and want to share my solution since I didn't see it on here when I was searching for solutions and it could easily happen to others.

I was getting high, fluctuating idle, and misfires ... when I got on the throttle when driving it was great. I naturally thought IACV, and then started reading about the neutral switch being a possibility. Since I had the manifold off I also thought it could be a vacuum leak. After double checking everything, checking for leaks, it turned out to by my throttle cables. I tightened them by hand during the re-installation, and was going to go back and tighten them with a wrench but forgot. They worked themselves loose and stopped the throttle from closing all the way causing a horrible air/fuel mix and P1507/P0507 and idle issues.

If you're getting these codes, it's worth taking a look at you throttle cables before messing with the IACV and definitely before pulling your trans for the neutral switch.
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Old 04-26-2014, 11:51 PM   #2
Scooby Newbie
Member#: 149130
Join Date: May 2007
Location: Colorado kid bored in Canada
2002 WRB WRX
VF39 Brembos etc


Just bumping an old thread since this made me happy today, had both codes after a ton of work and 4 months of my car down. Was about to start messing with the IACV when I found this, loosened my cables and it fixed it.
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