CEL & DTC=136 and DTC=538 HELP!!ANYONE??
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Joined: Apr 2010
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From: Saratoga Springs,UT
CEL & DTC=136 and DTC=538 HELP!!ANYONE??
Guys my MIL said the CEL came on today 1992 Ranger 2wd V-6 Standard Trans
I Hooked a Code reader up (CEL was Off by Now) and Pulled the
DTC=136 Something about (H02s) Sensor fault always Lean
DTC=538 Insuff RPM Change During Dynamic Response Test
Can Anyone shed Some Light on these^^
I looked and Saw Two H02 Sensors Is there 3 of them or only 2 I didn't crawl under it yet
Thanks Guys Hope Everyone is Having a Great Holiday weekend
I Hooked a Code reader up (CEL was Off by Now) and Pulled the
DTC=136 Something about (H02s) Sensor fault always Lean
DTC=538 Insuff RPM Change During Dynamic Response Test
Can Anyone shed Some Light on these^^
I looked and Saw Two H02 Sensors Is there 3 of them or only 2 I didn't crawl under it yet
Thanks Guys Hope Everyone is Having a Great Holiday weekend
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Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
just reading in the tech folder on 02 sensors and I remembered that the Truck had a Thermostat replaced But the Coolant temp gauge Still Always Read Barely warm
it may have Bad Temp sender for coolant
Is there a way to test it??
And if the Temp sender was Bad it may Not Achieve Closed Loop Operation from what Im getting out the Tech Folder. So Over Time would it Basicaly Ruin the 02 Sensors pluging them up to where they wont read correct???
it may have Bad Temp sender for coolant
Is there a way to test it??
And if the Temp sender was Bad it may Not Achieve Closed Loop Operation from what Im getting out the Tech Folder. So Over Time would it Basicaly Ruin the 02 Sensors pluging them up to where they wont read correct???
Post Fiend
Joined: Jan 2003
Posts: 9,748
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From: Connecticut
it may have Bad Temp sender for coolant
Is there a way to test it??
Is there a way to test it??
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Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
Yes Dude your a Lifesaver!! I rep ya tomorrow when Im Not in REP Time Out Thanks!!!
Exactly what I need!! I get my DVM and Check it out in the AM
Does this Truck Have 2 ECT Senders??
IIRC I got a DTC for Temp sender before unshure exact DTC But they had just changed thermostat I erased it It Wasn't there with the Ones I Listed
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Does this Truck Have 2 ECT Senders
1. The "engine coolant temperature sensor" (ECT) is used by the PCM to assist in engine management and control. This is the sensor you see in the link I posted and the one that can cause a DTC when it's not functioning correctly. Usually has two-wires.
2. The "temperature sending switch" is the other sensor. Its sole purpose is to send a signal to instrument panel temp. gauge. It has nothing to do with engine management and control. Usually has a single wire.
HTH
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