What is the purpose of the PCM Diode located in the underhood fuse box. How can you tell if its good. I know it sends the voltage for the secondary air injection pump

Asked by Regal_1040 Jun 03, 2015 at 10:01 PM about the 2000 Lincoln LS V6

Question type: Maintenance & Repair

Im only getting 2.81 volts to my Air Pump and thats what im getting when the pcm diode
is in its place. I would like to know what role it plays for making my air pump work.2000
Lincoln LS V6

Regal_1040 answered 9 years ago

your only going to get minimal voltage until the solid state relay boost it up to 12. so if your only getting minimal voltage check the solid state relay for yur problem

2 people found this helpful.

Mark helpful

Your Answer:

What is the purpose of the PCM Diode located in the underhood fuse box. How can you tell if its good. I know it sends the voltage for the secondary air injection pump 1 Answer

Im only getting 2.81 volts to my Air Pump and thats what im getting when the pcm diode is in its place. I would like to know what role it plays for making my air pump work.2000 Lincoln LS V6

2000 Lincoln LS V6

-

Maintenance & Repair
where is the secondary air injection pump relay located 4 Answers

Im trying to find the air pump relay. if its in the underhood fuse box can you please be specific like saying which relay number it is. My air pump doesnt work until I put 12 volts on it but checkin...

2000 Lincoln LS V6

-

Maintenance & Repair
i have no fuel on my lincoln ls 2002 the fuse is good the relay is good is it the fuel pump or is there something im missing 1 Answer

have no fuel on my lincoln ls 2002 the fuse is good the relay is good is it the fuel pump or is there something im missing... i took the fuel line off at the engine compartment and turn the key on and...

2002 Lincoln LS

-

Maintenance & Repair
I'd like to thank larry quigly for the gas advice and silveysales also. You guys helped me so much. Now I have another question for you guys if you can help. I just had the dealership do a tune up. I.E., spark plugs and coils. Now prior to the tune up, the car had NGK spark plugs and coils before it burnt out. I noticed good if not great gas mileage when those were in. Now the dealership changed the spark plugs and coils. They installed bosch platinums. Don't konw if they're the regular platinums or platinum plus. Should I continue to leave it with bosch platinums? or should I switch out the bosch for NGKs? please advise. I love my Lincoln LS and want to get the best gas mileage out of this V8 monster. 1 Answer

I like the bosch platinums but for some reason they don't last long. they didn't last long on my eclipse and im questioning it if I should have these bosch spark plugs removed to place NGK's in them.

2005 Lincoln LS V8 Ultimate

-

Maintenance & Repair
how do I fix the horn its not a fuse 2 Answers

cannot find horn itself show me where its at

2002 Lincoln LS

-

Maintenance & Repair

Used Lincoln Town Car

6 listings

Used Jeep Grand Cherokee

109 Great Deals out of 3,274 listings starting at $4,995

Used Lexus ES

6 Great Deals out of 197 listings starting at $4,500

Used Lincoln Continental

14 listings starting at $18,900

Used Ford F-150

296 Great Deals out of 15,534 listings starting at $1,712

Used BMW 3 Series

71 Great Deals out of 1,191 listings starting at $1,995

Used Ford Mustang

51 Great Deals out of 1,253 listings starting at $4,995

Used Lexus LS

25 listings starting at $11,888

Used Lincoln Navigator

6 Great Deals out of 196 listings starting at $9,869

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

What is the purpose of the PCM Diode located in the underhood fuse box. How can you tell if its good. I know it sends the voltage for the secondary air injection pump

1 Answer

Your Answer:

Shortcuts

Search Lincoln LS Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

What is the purpose of the PCM Diode located in the underhood fuse box. How can you tell if its good. I know it sends the voltage for the secondary air injection pump

1 Answer

Your Answer:

Related Questions