Errors 227 and 228

[IndianaRoadster]

I did a smoke test and found a vacuum leak which I fixed. Did a second test, no leaks. Still have codes. Here's a screenshot of the codes, any suggestions?
20200806_192951.jpg

[Muzz258]

If you look at the details in the fault code listing, you will see that its a "short circuit to Ground" problem. Suggest you check out the wiring to the pre-cat O2 sensor.

[rf900rkw]

227 and 228 = P1188 and P1189. Long term fuel trims exceeded. What are the fuel trims?

[IndianaRoadster]

227 and 228 = P1188 and P1189. Long term fuel trims exceeded. What are the fuel trims?

Thanks Randy, here's the screenshots after I let it warm up. I did notice Lambda-sensor voltage 1&2 was kind of back and forth.
20200807_153654.jpg20200807_153706.jpg20200807_153714.jpg20200807_153719.jpg20200807_153727.jpg

[BimmerBreaker]

Thats at idle? Why is it needing so much air at idle?

You clear adaptions after fixing the leak?

[rf900rkw]

Holy mother of over-richness.

Reported air consumption is too high. Though do note the bar graph is hosed by the programmer. The DME is pulling as much fuel as allowed, and still needs more.

Bad MAF.
Bad tune
Bad fuel pressure regulator.


On a properly -*working system, the two lambda bar graphs, O2 sensors, should bounce rapidly across the scale. In reality, several hundred times a second, but you won't see that on the screen.
Not a vacuum leak.

[IndianaRoadster]

Thats at idle? Why is it needing so much air at idle?

You clear adaptions after fixing the leak?

I cleared error memory if that's what you mean.

- - - Updated - - -

Holy mother of over-richness.

Reported air consumption is too high. Though do note the bar graph is hosed by the programmer. The DME is pulling as much fuel as allowed, and still needs more.

Bad MAF.
Bad tune
Bad fuel pressure regulator.


On a properly -*working system, the two lambda bar graphs, O2 sensors, should bounce rapidly across the scale. In reality, several hundred times a second, but you won't see that on the screen.
Not a vacuum leak.

What do you recommend my next steps to be? Take your 3 recommendations one at a time or do all 3 at once?

[rf900rkw]

Fuel pressure can be checked. Same gauge as an old Cheby. 51psi - manifold vacuum, meaning around 41 at idle.

Tune, has it been changed? Stock tune and injectors should be okay. If either have been changed, look there.

MAF can only be tested realisticly by substitution.

[IndianaRoadster]

Fuel pressure can be checked. Same gauge as an old Cheby. 51psi - manifold vacuum, meaning around 41 at idle.

Tune, has it been changed? Stock tune and injectors should be okay. If either have been changed, look there.

MAF can only be tested realisticly by substitution.

I will check the fuel pressure. As far as tune goes, when I bought it, it came with the Eurosport twin-screw supercharger already installed. I assumed that it had a new tune when the supercharger was installed but I have no way of knowing. I do have a buddy that has an stock M Roadster that I could swap out the MAF just to check it.

[BimmerBreaker]

So this car is currently supercharged?

- - - Updated - - -

Maybe just needs a resistor...?

[z3forlife]

Randy Forbes is running a Eurosport maybe he’ll chime in on whether he’s running a scaling resistor or not. My current tune uses a 1.8K with a vortech V2. If you downloaded Abel’s software then you have the program to read/write you tune.

[rf900rkw]

Okay. I thought I remembered this being a boosted car. My remembery is getting flaky sometimes.

All bets are off. This will have to be between you and a tuner. The twinscrew may explain the additional air at idle, due to the added drag of the blower. Fuel pressure, injector type, MAF... that all is no longer stock. It's whatever whoever tuned it called for. First step would be to slide the DME up out of it's cradle and see if whoever did this signed their work, be it a sticker or sharpie.


Edit

Indeed even the reported air at idle is suspect. The whole game of tuning is to skew the load signal (the MAF) and then mung the lookup tables to match the skew.

[IndianaRoadster]

Okay. I thought I remembered this being a boosted car. My remembery is getting flaky sometimes.

All bets are off. This will have to be between you and a tuner. The twinscrew may explain the additional air at idle, due to the added drag of the blower. Fuel pressure, injector type, MAF... that all is no longer stock. It's whatever whoever tuned it called for. First step would be to slide the DME up out of it's cradle and see if whoever did this signed their work, be it a sticker or sharpie.


Edit

Indeed even the reported air at idle is suspect. The whole game of tuning is to skew the load signal (the MAF) and then mung the lookup tables to match the skew.

Thanks, I will pull the DME up and check this weekend.

[IndianaRoadster]

So I took out the DME and took pics.
20200808_114414.jpg20200808_113126.jpg20200808_114223.jpg20200808_114500.jpg20200808_114143.jpg

[BimmerBreaker]

Email Eurosport and explain your issue

[IndianaRoadster]

Email Eurosport and explain your issue

I thought Eurosport went out of business years ago? If they didn't I will try to find a email address. Also took a pic of this in engine compartment. Don't know if it helps or not.
20200808_120511.jpg

[328 Power 04]

The idle air consumption isn't too much out of the ordinary for a twin screw.


The data suggests you have the wrong injectors for the tune, the wrong maf/resistor setup for the tune, or the wrong fuel pressure regulator for the tune.

Has anything been changed since the original kit?

[IndianaRoadster]

The idle air consumption isn't too much out of the ordinary for a twin screw.


The data suggests you have the wrong injectors for the tune, the wrong maf/resistor setup for the tune, or the wrong fuel pressure regulator for the tune.

Has anything been changed since the original kit?

No, this is how I bought it.

[328 Power 04]

You bought the kit brand new?

[IndianaRoadster]

You bought the kit brand new?

No, I bought the car with it already installed.

[BimmerBreaker]

You need to either talk to Eurosport (their site is still up, though you are probably right they are no longer in business.... Site was last updated 2010) or find a tuner and get it tuned. We can't determine the exact issue just from what this info provides.

[IndianaRoadster]

The idle air consumption isn't too much out of the ordinary for a twin screw.


The data suggests you have the wrong injectors for the tune, the wrong maf/resistor setup for the tune, or the wrong fuel pressure regulator for the tune.

Has anything been changed since the original kit?

I finally got my problem resolved. So to not get in trouble with cybermen I'm reporting the solution to my problem. It was the fuel pressure regulator that was putting out to much pressure. Put a new one in with the correct pressure and problem resolved. Was able to pass my emission test.

[saneesh8]

Just curious to know. What would be the ideal total air consumption (HLM kg/h) at idle (~790 rpm)? At coolant temperature around ~42C.

Attaching the images from my car (took few years back, no codes).