Help IDM
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More Turbo
Joined: Mar 2007
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Whats the likely hood it is a bad IDM. I mean it suppose to have a 1 year warrenty. TJ you sounded like you knew the guy. Is he any good?
What should I get for a reading on the injectors to test the valve cover gaskets?
What should I get for a reading on the injectors to test the valve cover gaskets?
Hotshot
Joined: Aug 2006
Posts: 10,764
Likes: 39
Originally Posted by caseydudem
Whats the likely hood it is a bad IDM. I mean it suppose to have a 1 year warrenty. TJ you sounded like you knew the guy. Is he any good?
What should I get for a reading on the injectors to test the valve cover gaskets?
What should I get for a reading on the injectors to test the valve cover gaskets?
Do you have access to a scanner ?...
Hotshot
Joined: Aug 2006
Posts: 10,764
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If you unplug one of the 4 sets of wires to the valve covers, one at a time , see if it sets a CEL... also...
if you do this ,note the diff in the way it runs,if there are probs with an injector or two, one or more of the plugs unpluged, won't make much diff in the way it runs....
if you do this ,note the diff in the way it runs,if there are probs with an injector or two, one or more of the plugs unpluged, won't make much diff in the way it runs....
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More Turbo
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So even when the first one went bad. It should have come up on my scanner? Cause it ddin't.
This is the guy I bought it from.
http://cgi.ebay.com/ebaymotors/SALE-...spagenameZWDVW
This is the guy I bought it from.
http://cgi.ebay.com/ebaymotors/SALE-...spagenameZWDVW
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More Turbo
Joined: Mar 2007
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Originally Posted by Action4478
Can it do a buzz test ?....
here let me go and try the scanner and see what happens. I'll be back
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Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Yep thats who I thought. I have not heard any bad things from them. I think my dad has bought a few hard to find PCM's from them. Give them a call but I would ohm check the harness first.
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Just scanned three times and nothing each time. I'm pretty sure that the scanner works properly but you never know. I can check the ohms on the harness tomorrow. Shouldn't I get like 3.5 ohms? If I remember correctly.
Hotshot
Joined: Aug 2006
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This is from Patrick Feeley
On each valve cover connection there are five pins. The outermost pins (pins 1 & 5) are for the glowplugs. They should not have continuity with each other or the center three. The center three are for two of the injectors in each bank. The ohm reading between each outermost injector(pins 2 & 4) and the center pin (pin 3) should be about 2 ohms (if I remember correctly <?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype class=inlineimg id=_x0000_t75 title='\\\"Stick' stroked='\\\"f\\\"' filled='\\\"f\\\"' path='\\\"m@4@5l@4@11@9@11@9@5xe\\\"' alt='\\\"\\\"' src="http://images.ford-trucks.com/forums/images/smilies/tongue.gif" border="0" o<img Tongue\? Out></v:shapetype>referrelative<V
</V Pins 2 & 4 should also not have continuity with each other. The undervalvecover harnesses are just replaced as a "unit" if they are bad (there are 4 of these harnesses per truck, 2 per side). Does that help? Cheers!
<O></O>
On each valve cover connection there are five pins. The outermost pins (pins 1 & 5) are for the glowplugs. They should not have continuity with each other or the center three. The center three are for two of the injectors in each bank. The ohm reading between each outermost injector(pins 2 & 4) and the center pin (pin 3) should be about 2 ohms (if I remember correctly <?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype class=inlineimg id=_x0000_t75 title='\\\"Stick' stroked='\\\"f\\\"' filled='\\\"f\\\"' path='\\\"m@4@5l@4@11@9@11@9@5xe\\\"' alt='\\\"\\\"' src="http://images.ford-trucks.com/forums/images/smilies/tongue.gif" border="0" o<img Tongue\? Out></v:shapetype>referrelative<V
</V Pins 2 & 4 should also not have continuity with each other. The undervalvecover harnesses are just replaced as a "unit" if they are bad (there are 4 of these harnesses per truck, 2 per side). Does that help? Cheers!<O
></O>
Postmaster
Joined: Feb 2004
Posts: 3,266
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From: Levittown
Casey
Test everything right from the IDM connector.
Its unknown what the modded IDM could of done when it burned.
The IDM has high (injectors) and low (PCM) voltage outputs.
Could not find the ohm on inj coil.
Maybe test the new IDM in a working truck. Could save you some time.
Do not put the working IDM in your truck as a test.
It will ruleout the IDM
Bill
Test everything right from the IDM connector.
Its unknown what the modded IDM could of done when it burned.
The IDM has high (injectors) and low (PCM) voltage outputs.
Could not find the ohm on inj coil.
Maybe test the new IDM in a working truck. Could save you some time.
Do not put the working IDM in your truck as a test.
It will ruleout the IDM
Bill
Last edited by MADVAN; Nov 20, 2007 at 04:21 PM.