I see no reason for the computer to be grounding the circuit with the key off. That would be an unnecessary parasitic draw. If you backprobe the wastegate solenoid connector (plugged in)with the key off, you should expect to read 12 volts to ground on both sides. If you do not read 12 volts at pin a...

...

somebody fill up the firetruck, i smell a party coming on ......

....

...

misdiagnosisizing their own defective part? ??? sirry lound eye amelican mechanic.Ffor that we charge. double........

....

Check camshaft position signal. erratic signal will show up as "YES" on scanner but will not sync injectors. seen this twice.

...

Or intake gasket leaking from the bottom side ....

...

....

I've seen a number of flat cams from that era. Stick a vacuum gage on the manifold. Telltale sign is fluctuating vacuum. From there pop the valve covers off and check the rockers for proper movement.

....

...

There is a TSB for a ground issue that can cause that code. Go to TSB's and search for p0430.

'''

Rich wrote:
like going into a house fire for $12.00 an hour?? lol

...

Does 12 bucks include water or does that cost extra ???

...

...

shouldn't Mitchell include a set labor charge for "Laying on of Hands" or something like that ??? I always explain to my customers that all of the major automotive production facilities are located on sacred Indian burial grounds. There's some things in this life you just can't explain ...

...

....

I would take a real close look at the ground point in the left rear of the trunk.

....

...

I'ld be suspecting a bad valve on #4 cylinder, probably an exhaust with that kind of miles on the motor.

....

...

hi mace and welcome to the forum. you lost me about line two or three but I'm. sure someone a little more knowledgeable will be along soon. I use bumper to bumper and it acts up on me sometimes.maybe I'll learn something here .......

.....

...

You are right, Tim. With a massive vaccum leak, IAC will drop all the way to zero. 30-35 is optimal for steady idle.
I would suspect the IAC itself until I proved to myself otherwise.

...

ricmorin wrote:Would that not be tampering?

....

"Function temporarily disabled for diagnostic purposes". That's not really "TAMPERING". Or Is it ???

...

....

EGR valve stuck wide open ??? Intake gasket sucked in from the crankcase side ??? Camshaft out of time ??? Something wierd is amiss internally it sounds like to me.

...

... I actually prefer 'good used' over some suppliers rebuilts that have to be replaced every three months for the duration of the lifetime warranty. I know a rebuilder that buys rebuilts from one of the local chains because its cheaper than paying someone to clean up the cores. He then guts them an...

Kewl !!! Thanks for the info ....

... Did cleaning the throttle bore change the iac numbers ??? 39% is a little high. Optimum would be 30%.After a KAM reset the PCM should learn an idle strategy that gives the desired rpm when the compressor cycles on. The other thing is that the compressor normally doesn't tend to cycle off and on,...

This is a bad seal in the Turbo. I have changed hundereds of these things back in the day. If you do the job be careful of the brass water cooler line adapters that screw into the turbo. If you break them while taking the line off these fittings are no longer available. In the old days I would be a...

...

My money's on the turbo. Seen a couple lose the intake seal and it sucks LOTS of oil into the intake when they do.

...