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ECU codes - igniter #971049 11/07/09 06:52 PM
Joined: Oct 2008
Posts: 59
L
lhedrick Offline OP
Getting the Wheeling Fever
1994 T100 V6 3.0L

Check engine light is on.

I connected the TE1 and E1 points and the flash codes were

14 No IGF signal to the ECU
21 Oxygen sensor heater circuit
71 EGR malfunction

-------

I pulled the Ox censor and a meter showed an open circuit on the heater wires. Install a new one and that code is now gone.

The EGR valve looks bad. Truck is 15 years old and the valve is so rusted I am afraid to touch it.

Code 14.
This one I don't know anything about. Igniter signal. I don't know about igniters. What is an igniter? Anyone have an idea.

The truck runs just fine should I just keep running it as it is?

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Re: ECU codes - igniter [Re: lhedrick] #971050 11/07/09 07:36 PM
Joined: Feb 2007
Posts: 476
B
BamZipPow Offline
Mudrunner
Igniter is similar to the coil...you should find the igniter if you follow the coil lead from the distributer cap. The unit will say igniter on it. <img src="/forums/images/graemlins/wink.gif" alt="" />

As long as you hit the EGR bolts/nuts/fasteners with some penetrating oil...it should be fine. I use Kroil oil as well as PB Blaster. <img src="/forums/images/graemlins/wink.gif" alt="" />

If these are the only things that are going wrong...I'd keep it. Let us know what you do. <img src="/forums/images/graemlins/smile.gif" alt="" />


1998 T-100 Xtra cab SR5 2WD Auto; Roadmaster Active Suspension; Yokohama Geolander HT-S; lowered air dam; full belly pan; 4 diffuser; 11" side skirts; dual transmission coolers; 67% grill blocked; Auto-RX'd; ScanGauge II/Ultra-Gauge
Re: ECU codes - igniter [Re: BamZipPow] #971051 11/07/09 09:32 PM
Joined: Oct 2008
Posts: 59
L
lhedrick Offline OP
Getting the Wheeling Fever
Thank,

I was wondering if the ignitor was a new term for the coil. I'm old school. Why would the ECU report an issue with the coil when it runs fine? Could the voltage be down a bit because of a winding or 2 being shorted?

These manufacturers are pissing me off with this "check engine" garbage. It would only cost pennies to add a 2 digit read out on a 30,000 dollar truck.

Re: ECU codes - igniter [Re: lhedrick] #971052 11/08/09 12:19 AM
Joined: Jun 2005
Posts: 447
E
eleet Offline
Mudrunner
Some of the codes may be old. You or previous owner could have had a temporary issue (after washing engine for instance) that went away, causing the light to go out but the fault is remembered.

Clear them now and see which ones re-appear.


97 T100 4x4
97 328i
95 540i restoration project
Re: ECU codes - igniter [Re: lhedrick] #971053 11/09/09 12:04 AM
Joined: Aug 2003
Posts: 676
garym Offline
Rock Warrior


1997 T-100 4X4 Xcab,Warn Hubs
02 Camry LE
2008 Yaris
Re: ECU codes - igniter [Re: garym] #971054 11/09/09 06:37 PM
Joined: Oct 2008
Posts: 59
L
lhedrick Offline OP
Getting the Wheeling Fever
Thanks, for posting the like to the igniter.

I reset the the ECU by pulling the breaker. Plug it back in after a minute. Engine fires right up, runs fine.

Not sure why it would run if the ECU doesn't see the coil. I would think the ECU would not activate the injectors if it thought there was no spark.

The next step will be to try to unplug the unit and clean the connectors but that doesn't explain why the ECU would fire up a cold engine when it thinks there is no spark?

But, what do I know anyway.


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