CA Smog Test, Failed, Code P2607

[Turbo_Bob]

This is my first year having to do a smog test for my 2003 HO diesel. The test failed due to an error code, (P2607) the attendant could not tell me what it means, just get it fixed and take the test again, but said after fixing the problem, you have to drive 100 miles so the computer will turn off the code. Can't the auto repair shop after fixing the problem turn off the code?



After doing a search here I see that P2607 means "Intake Air Heater Relay 2 Low" In the cold mornings I do notice that the heater grid works, cycles. So does this mean only one heater is working ? The heater grid is between the manifold pipe and the head right ? Where is the other heater, or are both in that location ?



I guess I should look at the heater grid relay connections, spray clean and blow out for better continuity ? Any other areas to look at, like fuse panel ?

 

[Prairie Dog]

I'm going to take a wild guess and suggest that the relay is shorted. I would think thats the only way the computer could detect a "low".
Now I wonder which one is #2? Maybe you could attach a volt meter to the output of each relay and look for one that has no output.
Oh and yes, anyone with a scanner can clear the code.

 

[p-Bar]

Ya you may want to get the engine up to temp have it reset then take it for smog test. It sucks they wouldn't pass it due to a non smog related item. As praire Dog says check the solenoids below the passenger side batteries. Didn't think you needed to smog in Victorville?

 

[Simplysmn]

Hey Turbo Bob I am in Apple valley if you need somebody to clear the codes for you just send me a PM glad to help out if I can .



Val

 

[Turbo_Bob]

I'm going to take a wild guess and suggest that the relay is shorted. I would think thats the only way the computer could detect a "low".

Now I wonder which one is #2? Maybe you could attach a volt meter to the output of each relay and look for one that has no output.

I will try that, but I think I will have to buy the whole solenoid assembly if that is the culprit. I will report back when this is fixed to let you guys know, thanks for the help.

 

[Turbo_Bob]

Didn't think you needed to smog in Victorville?

It is state wide, smog testing diesels 1998 and up. I have owned this truck for nine years and this is the first time for testing, now repair and re-test. I have 190 thousand miles on truck, this is the only issue that is not working, the heater grid. This has been a great truck in all other aspects, just the standard maintenance.

 

[Turbo_Bob]

Hey Turbo Bob I am in Apple valley

Val

Hi neighbor

 

[Bob4x4]

There are zip codes in Cali that are exempt

 

[RVTRKN]

The reason it failed the smog test is, because California requires that the OBDII not have any current codes, in other words, the OBDII can not be throwing any codes, I don't know about stored codes. I have to go through this in a couple of weeks.

 

[Regcabguy]

For whatever reason,the K01 emissions reflash killed my ECM. Dodge bought me a new one along with another small part.



I was asked to drive it for 200 miles in order for the truck to "learn values".

I had the dealer smog it and it passed. Funny thing though,my truck was listed in the certificate as a 6. 7 auto. The vin# lined up. My buddy's truck came out the same. Both are '07 manuals.

 

[p-Bar]

There are zip codes in Cali that are exempt

Ya my brother registered his in Needles no cert needed

 

[Simplysmn]

There are zip codes in Cali that are exempt

yes zip code in Needles Ca are Exempt :-laf

 

[ACerf]

California is over the top with their smog tests, especially on diesels! Sold house in 2004 in Ontario and I will never go back to the pinko state again. Have vehicle registered in South Dakota; cheap license fees, no smog tests!

 

[CCahill]

They want you have a few/stop/start cycles to make sure the CEL won't come on again. Just had my truck smoged for the first time in December... . pulled off the comp box and tucked in all the wiring and it passed fine.
Was worried !!!

 

[AMcCormick]

I think "smoging" diesels is a good idea. Just how you do it is the problem. It really should not matter what has been done to an engine as long as what comes out is clean or al least not over the top dirty. The snap test is just stupid. Way too subjective and way too may variables.

 

[RVTRKN]

The reason it failed the smog test is, because California requires that the OBDII not have any current codes, in other words, the OBDII can not be throwing any codes, I don't know about stored codes. I have to go through this in a couple of weeks.

Well It passed today, what a joke. First the truck was listed as a 5. 9 and was asked for the owners manual to see what smog equipment was needed. Then was asked what a DPF was, and where was the Cat. No smog sticker under the hood, when I explained what the DPF was and the Cat should be connected to it, he said OK.



I was sweating it out though, I installed a defective Lockpick that was throwing "No Bus" codes, and when having to have DMV inspect it (long story) back in 09 they were looking for the somg sticker as well, and passed it anyway. I guess I will have to investigate that, and get it on where it belongs or proof it doesn't exsist. Any way, I asked if he had any diesel's fail the smoke test and was told only two trucks, one Ford and one GM, and it turned out to be bad injectors. I don' have to worry a out it for two years any way, I wonder why the computer listed it as a 5. 9, I sure wished it was.



AMcCormick, I don't know your politics, it sure sounds a lot like a democrat when they say we should pay our fair share in taxes then pay as little as possible themselves. Any smog, for any vehicle is just another form of control and another excuse to collect taxes.

 

[p-Bar]

Well It passed today, what a joke. First the truck was listed as a 5. 9 and was asked for the owners manual to see what smog equipment was needed. Then was asked what a DPF was, and where was the Cat. No smog sticker under the hood, when I explained what the DPF was and the Cat should be connected to it, he said OK.

I was sweating it out though, I installed a defective Lockpick that was throwing "No Bus" codes, and when having to have DMV inspect it (long story) back in 09 they were looking for the somg sticker as well, and passed it anyway. I guess I will have to investigate that, and get it on where it belongs or proof it doesn't exsist. Any way, I asked if he had any diesel's fail the smoke test and was told only two trucks, one Ford and one GM, and it turned out to be bad injectors. I don' have to worry a out it for two years any way, I wonder why the computer listed it as a 5. 9, I sure wished it was.

They have a "book" from the state they look up what it is supposed to have on it for smog. This guy didn't know what he was doing. Must have been trained by a state employee "peter principal"

 

[Turbo_Bob]

The guy that was smoging my truck was looking for the sticker on the engine to tell him something. The question was if the emissions were State or Federal, I told him federal, no CAT, all stock, 5. 9 engine.

Well my appointment is this Friday morning with the Dodge dealer to trouble shoot the error code P2607.

I did my best trying to figure it out, got a volt meter, measured for power on the other side of relays, also measured the two small wires on each relay, no power at all. The heater grid does work if below 59F, I hear the hum, and click off when up to temp. Also when the headlights are on they dim when the grid is on, which is normal. I guess one of these grids are not working.

I took all the wires off of the relays, heater grid and ground, cleaned and re-tighten, code still on.

I had my nephew use his professional code reader on my truck, the code is still there. He erased the code several times, but it comes back instantly, must be a hard fail ?

 

[p-Bar]

Ya I remember disconnecting the grid off the solenoid and automatic code. Living in So Cal don't really need them and it's hard on the batteries. HO's wern't a cali truck but you have a good one there. Keep us up on what transpired.

 

[Deleted member 995608]

p-BAR,



Did you ever notice that early 04's don't have a cat in Ca? My smog buddy showed me the reference book and it shows that 04's do not come with one. There is no 1/2 year information.



I put mine back in (still there) before I had to smog simply because I know that it came with it.