|
|
|
#1
|
|||
|
|||
1994 E320 bad hfm where to find one used?
My grandma's 1994 e320 had the typical bad wiring harness which I replaced with a brand new one from MB. But not before the wires arched a couple times on the fuel rail, causing what I believe to be a hfm controller failure.
What I have is cylinder six has no ticking at the injector, I have pulled off the injector rail and swapped other injectors in # 6 slot but it will still not pulse, I realize the proper way to test is with a noid light but I don't have one. The other symptom is I have no a/c MB in Sioux falls, SD said that this could be controlled by the hfm being faulty. 2 questions: #1 Is this what it sounds like to everyone else? #2 Where can I find a cheap hfm I've looked on ebay http://cgi.ebay.com/ebaymotors/MERCEDES-300-E-E320-ENGINE-MANAGMENT-COMPUTER-HFM_W0QQcmdZViewItemQQcategoryZ33596QQihZ004QQitemZ140253820539QQrdZ1QQsspagenameZWDVW but this hfm doesn't look like mine and the numbers are different. I need to get this car running. thanks for looking at my problem. |
#2
|
|||
|
|||
Check the plug and plug connector to that cylinder.. The ecu cuts injector power if HFM sees an ignition misfire on a cylinder to protect the Cat.
You can also go get the codes for HFM under the hood.
__________________
A Dalton Last edited by Arthur Dalton; 08-01-2008 at 12:45 AM. |
#3
|
|||
|
|||
Forgot to mention all new coils, plugs and wires also. I have tried swapping coils around to make sure that the problem is not a faulty coil or wire.
|
#4
|
|||
|
|||
Then get the codes...
I would be mostly intersted in pin #8 [HFM/SFI module] E320 16 PIN DTC Charts inc. pin 8, pin 14
__________________
A Dalton |
Bookmarks |
|
|