P0358 need Phelp

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Jun 1, 2007 | 01:49 PM

Z06Norway

Thread Starter

Melting Slicks

Joined: Nov 2000

Posts: 2,225

Likes: 247

From: Merritt Island Florida

P0358 need Phelp

Need help, car is running on 7 cylinder, and P0358 DTC showing up.

I checked wiring harness, borrowed a new coil, start here up and header 8 is cold to tuch with my hand.
Changed spark plug and voila, she fired up on all 8, after a 15 minutes short trip engine started to hesitate and run on 7 again

http://www.gearchatter.com/viewpost14756.php
I dont have a Tech II, so i cant check all on this page

But i suspect the PCM to fail ????
Or does anyone else have a better solution ?

There is 4 wires to the coil
12 volt
Ground
1 volt reference
IC ground that trigger the coil ?

regards
Rune

Jun 1, 2007 | 02:01 PM

Zig

Safety Car

Joined: Dec 2004

Posts: 3,565

Likes: 5

From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)

any possibility that the plug wire is loose and or not 'snapping' onto the plug completely?

Jun 1, 2007 | 03:38 PM

Z06Norway

Thread Starter

Melting Slicks

Joined: Nov 2000

Posts: 2,225

Likes: 247

From: Merritt Island Florida

Quote:

Originally Posted by Zig

any possibility that the plug wire is loose and or not 'snapping' onto the plug completely?

Nope, i even borrowed one from my friend,

Rune

Jun 2, 2007 | 12:52 PM

Z06Norway

Thread Starter

Melting Slicks

Joined: Nov 2000

Posts: 2,225

Likes: 247

From: Merritt Island Florida

solved

or atleast i think so.

I borrowed my friends wire, changed spark plug and coil, voila
she works again :-)

god how much better a V8 is than a V7 :-)

But i am still worried

Rune

Jun 3, 2007 | 10:20 PM

cerino2000

Le Mans Master

Joined: Dec 2003

Posts: 7,457

Likes: 144

From: NC

That code comes back to:

Ignition Coil H Primary/Secondary Circuit Malfunction

My vote is that it is in fact the coil just went bad.

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