O2 sensor heater DTC

[sapote]

Post the link to datazap for the graphs

[x Spades x]

Post the link to datazap for the graphs

https://datazap.me/u/xspadesx/log-1735108023?log=0&data=

[sapote]

I checked your datazap. The problem:
your log only has 3 PID: Longitude, latitude, car speed. You need to add these as I had pointed out: engine temperature and intake air temp in C and not F, rpm, MAF in g/s, SAP status, all 4 fuel trims, all 4 O2 sensors, etc. See my example log I posted before.

[x Spades x]

I checked your datazap. The problem:
your log only has 3 PID: Longitude, latitude, car speed. You need to add these as I had pointed out: engine temperature and intake air temp in C and not F, rpm, MAF in g/s, SAP status, all 4 fuel trims, all 4 O2 sensors, etc. See my example log I posted before.

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

Also, I just got a check engine light. I read the codes and screenshot (also below), and looks like 2 faults (catalyst efficiency below threshold banks 1 & 2)..

https://datazap.me/u/xspadesx/xspadesx-log-1226?log=0&data=2

[eacmen]

Doesnt your Hassan tune squash the catalyst DTCs? Mine does.

[x Spades x]

Doesnt your Hassan tune squash the catalyst DTCs? Mine does.

I opened it up, to see what the car was actually doing.

what confusing is my SAP isnt readying up and i reinstalled it. On the 12th cold start

[sapote]

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

You did good job of adding more PID, but you need to add Long term fuel trim for bank1 and bank2 as they are important to know if engine running lean or rich mixture. Look at my example and compare to yours and add what is missing.



It looks like the cats are bad, as the post cat sensors switching mirror the precat sensors. Post cat sensor signals should stay high most of the time. However we need to see the long term fuel trims to make the conclusion.

The standard hot idle is around 850 rpm, but your is around 916, a bit too high. Do you know why? Leaking intake is one reason to have higher rpm.

Delete the Longitude and Latitude from your PID as they are useless and use up the bandwidth.

To know how the SAP doing, you can take a log with cold engine running for 3 minutes and I can tell how the system doing. Better yet, do a total 20 minutes log from cold start and drive around and park the car with engine idling for 3 minutes to have hot idle log and cold start log together, as I did in my example (although I didn't let the hot engine idling long enough).

[eacmen]

You did good job of adding more PID, but you need to add Long term fuel trim for bank1 and bank2 as they are important to know if engine running lean or rich mixture. Look at my example and compare to yours and add what is missing.



It looks like the cats are bad, as the post cat sensors switching mirror the precat sensors. Post cat sensor signals should stay high most of the time. However we need to see the long term fuel trims to make the conclusion.

The standard hot idle is around 850 rpm, but your is around 916, a bit too high. Do you know why? Leaking intake is one reason to have higher rpm.

Delete the Longitude and Latitude from your PID as they are useless and use up the bandwidth.

To know how the SAP doing, you can take a log with cold engine running for 3 minutes and I can tell how the system doing. Better yet, do a total 20 minutes log from cold start and drive around and park the car with engine idling for 3 minutes to have hot idle log and cold start log together, as I did in my example (although I didn't let the hot engine idling long enough).

I think the car is catless as he mentioned Hassan coded out rear O2?

[sapote]

I think the car is catless as he mentioned Hassan coded out rear O2?

Catless? No wonder the post cat sensors follow the precat ones. Any ideas why his idle is high -- from the tuned firmware?

[eacmen]

Catless? No wonder the post cat sensors follow the precat ones. Any ideas why his idle is high -- from the tuned firmware?

If I am following correctly OP had Hassan tune on the car in post 1. Then tried flashing back to stock and installing SAP to see if O2 heaters would go ready and that's where he is at right now.

But if I am being honest I am not really sure what state OP's car is in right now.

[x Spades x]

I think the car is catless as he mentioned Hassan coded out rear O2?

No no. The car has the SSV1 HFC Sec 1. It only has about 10k miles on them though.

[x Spades x]

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.

I performed a leak test as I thought that was the cause of the lean code, but there were zero leak to speak of.
I'm anticipating this being a 360hp-ish car as it feels very strong in its current state (bot really pushing this base tune).

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?

[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

[x Spades x]

SAP readied up... all down to the heater now.

[eacmen]

SAP readied up... all down to the heater now.

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