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Old 02-07-2014, 08:41 AM
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fasteract7 fasteract7 is offline
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Join Date: Apr 2013
Location: NC
Posts: 395
Re: SVX can't climb hills

Again no flashing of the green 'Power" light or CEL codes, right ? The Power light does show up with the key on "ON" ? Same problem with the other MAF you plugged in ? Any chance your MAF plug or wiring to it is buggered up ?

Have you checked the 4 large grey square connectors on the passenger side of the engine towards the rear ? Nice and snug, clean? Connector to the vehicle speed sensor on passenger side of tranny where it connects to engine ? Problem there should however have the Power light coming on and off. I had "clunks" when one of those 4 connectors was loose but also had "Power" light intermittent flashing.

Presume you checked the ground on P side of IM (12mm bolt)..

What happens if you try a test run with MAF disconnected...it should run off the default ECU programming. Doubt the O2 sensor if failed would cause these problems as you probably already thought.

I'm feeling electrical per what you've said so far if you get fuel at high rpms. Coil failure should be throwing CEL codes with "misfire cylinder 4", etc. type of picture. Your feeling has more zip now ...?...running a bit leaner than its usual too rich settings stock...try disconnecting the vacuum feed from the fuel regulator so it is max'd out all the time just for the hell of it.
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