O2 sensor heater DTC

[x Spades x]

You still have the stock tune? Did the check engine light go away?

I cleared the light and installed a tune terra adjusted for me some years back. Did a cold start this morning and SAP readied after one.

so now it comes down to the heater. For some reason, I don't think evap will ever ready.

[eacmen]

My opinion… I think you need to reach back out to Hassan and get a proper tune for the new engine you swapped in. Let him know the issues you're having and he should be able to fix them.

I'm running a Hasan tune catless and able to pass smog. You have cats so passing smog should be easier for you!

[AWE46M3]

Ok ill update the car status.

I swapped a new (used) engine from mparts into mine as I spun a rod at 205k miles.

Motor has 120k (180 compression on all cylinders)
288/280 cams
CSL Ecu with H bridge
CSL Karb airbox
OEM snorkel with flap
SSV1 headers
SSV1 HFC Sec 1
SS 63.5mm Sec 2
Scorza
SPAL efan (disconnected for now)
reinstalled SAP

brand new pre O2 sensors
used Post O2 sensors (swapped twice from Mparts)

I was running with my old engine tune and couldn't pass DTC. So I hit up Hassan and said I need a base tune for DTC and I'll dyno tune with him once registered.

he sent me a base one which had rear O2 suppressed abd SAP DTC suppressed. Ran with that tune for 400 miles (with drive cycles) and couldn't get SAP, Heater, or evap to ready).

so I reinstalled SAP and I unchecked all suppression to see what wouldn't show up.

surprisingly, SAP still not readying with hardware. Heater still not readying.

car runs smoothly. You would not guess there is any issue. Just getting cat threshold efficiency codes (the only ones as of now). I did get a lean/rich code at the very beginning. I do have an exhaust leak at the header/sec1 connection that if tried to fix 3 times (SS quality control is trash apparently.

Did Hassan provide you with a stock tune that has DTCs suppressed? A stock tune is a stock tune—why suppress DTCs? That’s odd. He should have given you a completely bone-stock tune to flash onto your car.

The car needs to be properly reflashed back to the stock DME software. Unfortunately, I don’t know of anyone in California with a cammed S54 who has managed to pass smog. The cam is the one modification you won’t be able to revert to stock, and it’s likely the biggest obstacle in your setup to prep the car to pass smog.

It goes without saying, but you’ll also need to remove your Karbonius airbox and reinstall the stock airbox. The stock tune isn’t compatible with the Karbonius airbox—and the aftermarket airbox won’t pass the visual inspection either.

Another key step is addressing your post-cat O2 sensors. The best practice is to route the connectors to the catted section 1 without splicing the wires to extend them. Splicing can alter the resistance and cause sensor faults. Instead, unravel the stock wiring harness and route it along the driver’s side, through the transmission tunnel behind the heat shield. If routed correctly, the stock wiring is long enough to reach.

Once you’ve restored the airbox to stock, properly routed the O2 sensors, you can reflash the stock tune and start working on the readiness monitors using the drive cycle chart. However, from my perspective, the cam remains the big question mark.

If you’re in Southern California, I highly recommend taking your car to Tom at European Auto Source. He can reflash your DME back to a proper stock configuration, and it may also be worth having them review your work to ensure everything is in order.

If I were in your shoes, I’d seriously consider registering the car out of state.

[x Spades x]

Did Hassan provide you with a stock tune that has DTCs suppressed? A stock tune is a stock tune—why suppress DTCs? That’s odd. He should have given you a completely bone-stock tune to flash onto your car.

The car needs to be properly reflashed back to the stock DME software. Unfortunately, I don’t know of anyone in California with a cammed S54 who has managed to pass smog. The cam is the one modification you won’t be able to revert to stock, and it’s likely the biggest obstacle in your setup to prep the car to pass smog.

It goes without saying, but you’ll also need to remove your Karbonius airbox and reinstall the stock airbox. The stock tune isn’t compatible with the Karbonius airbox—and the aftermarket airbox won’t pass the visual inspection either.

Another key step is addressing your post-cat O2 sensors. The best practice is to route the connectors to the catted section 1 without splicing the wires to extend them. Splicing can alter the resistance and cause sensor faults. Instead, unravel the stock wiring harness and route it along the driver’s side, through the transmission tunnel behind the heat shield. If routed correctly, the stock wiring is long enough to reach.

Once you’ve restored the airbox to stock, properly routed the O2 sensors, you can reflash the stock tune and start working on the readiness monitors using the drive cycle chart. However, from my perspective, the cam remains the big question mark.

If you’re in Southern California, I highly recommend taking your car to Tom at European Auto Source. He can reflash your DME back to a proper stock configuration, and it may also be worth having them review your work to ensure everything is in order.

If I were in your shoes, I’d seriously consider registering the car out of state.

The car is heavily CSL'd, so reverting everything will have me sell the car... lol. I live in CT, and have had the car for 12 years (airbox and cams for 10) and don't have an issue with visuals in CT.

Hassan did give me a base tune (I would imagine with cams in mind).

I've checked the wires (visual and meter) and everything seems to be reading in order. ive mever had heater problems like this in the passed.

[AWE46M3]

The car is heavily CSL'd, so reverting everything will have me sell the car... lol. I live in CT, and have had the car for 12 years (airbox and cams for 10) and don't have an issue with visuals in CT.

Hassan did give me a base tune (I would imagine with cams in mind).

I've checked the wires (visual and meter) and everything seems to be reading in order. ive mever had heater problems like this in the passed.

CT? I thought you lived in CA 😄 Only CA guys stress about emissions monitors. I’m shocked CT doesn’t have a provision to grandfather the car in as a classic car. Thanks for clarifying.

Between the other recommendations you’ve received, it seems like you’re close to getting those heaters turned on.Best of luck

[ugaexploder]

you could also try calling your state’s clean air force division. i’m trying to work with mine to have emissions waived. in metro ATL, cars that are 3-25 years old need this bs.

it’s funny when you see barely roadworthy cars on the road trying to kill people, but this is what we need to enforce in metro cities as a nation. we’ve been cooked for a long time.

thinking ab putting under a trust and registering in Montana like the rich folks. probably not a bad idea to put a lot of possessions under a trust, similar to silencers.

[sapote]

Finally figured this out. My log is below. Just idling for 3 min fully warmed up.
]

Your log doesn’t have these pid: long term fuel trim for bank1 and bank2.

[x Spades x]

Your log doesn’t have these pid: long term fuel trim for bank1 and bank2.

I redid all of the tests (cold start idle, highway drive, warm idle) and reposted each grap link on page 6. In those graphs I included the long term fuel trim %s.

[sapote]

I redid all of the tests (cold start idle, highway drive, warm idle) and reposted each grap link on page 6. In those graphs I included the long term fuel trim %s.

Page 6 on Dadazap? It’s confusing of why the old log with missing ltft PID wasn’t deleted? I will check again.

[eacmen]

As previously mentioned if CT lets you register it historic do that. Its cheaper and no smog in MD for me.

[x Spades x]

Page 6 on Dadazap? It’s confusing of why the old log with missing ltft PID wasn’t deleted? I will check again.

Ah apologies, as I'm a dadazap noob... lol

Page 6 here...

[x Spades x]

Cold start:

https://datazap.me/u/xspadesx/cold-start?log=0&data=8

Steady Highway:

https://datazap.me/u/xspadesx/steady-highway?log=0&data=8

Warm Idle:

https://datazap.me/u/xspadesx/warm-idle?log=0&data=8

sapote
eacmen

For reference

[sapote]

eacmen
sapote I think the idle rpm is raise a Lil because of my cams. Maybe to get the "lobiness" out or occasional chop. I think i did that in the past (years ago) to achieve a more stock sounding idle.

Also my catalysts are readying up, so how can they be bad?

I didn't see this when reading yours first time.
Suggestion: don't edit and add information unless you pointed this out in new post, as others won't know this. Instead just add to new posts.

So you increased the rpm in the tune to have smmother rpm with the cams -- so the tune is not stock?

On the new logs: Cold start and Steady Highway logs labels mixed up.

The odd things: I wonder why it took the engine so long, 7 full minutes to close the control loop (see Fuel status). Normal car should be about a minute or less.

You have negative fuel trim, meaning the DME tried to correct rich mixture issue. But the total fuel trims are less than 5 which should cause no SES light on.
The post car sensors show the CATs are not working and this sure will fail the smog test unless it's disabled.

The SAP command is normal so SAP pump should be running when cold start.

[sapote]

Also my catalysts are readying up, so how can they be bad?

NO they are not ready.
Look at the O2 sensors post cat: the signals switching just like precat sensors which means the exhaust gas wasn't treated properly. They should be above 0.5v most of the time. This should cause CAT readyness fail.

[x Spades x]

NO they are not ready.
Look at the O2 sensors post cat: the signals switching just like precat sensors which means the exhaust gas wasn't treated properly. They should be above 0.5v most of the time. This should cause CAT readyness fail.

You are correct. I guess I mean the app is saying the catalysts are ready... which doesn't make any sense.

Also my cats look almost brand new, which is also strange.