ECUflash CeddyMod v1 (EcuFlash)

[obx tsi]

Has anyone had a problem with a code 1105 after doing the ceddy mods? I did the latest version and now all of a sudden I am getting a fuel pressure solenoid code. Mine has be not hooked up for atleast a year but is still pluged in to the wire harness. Car seems to be running rich although wideband shows that it is not. Any advice, thanks.

 

[Ceddy]

Has anyone had a problem with a code 1105 after doing the ceddy mods? I did the latest version and now all of a sudden I am getting a fuel pressure solenoid code. Mine has be not hooked up for atleast a year but is still pluged in to the wire harness. Car seems to be running rich although wideband shows that it is not. Any advice, thanks.

The P1105 is from hardware on your car, not CeddyMods. It could be the result of warmer weather, etc.


P1105 "Fuel Pressure Solenoid Malfunction"

The OBD2 code is complex, this is how I think P1105 works:

The ecu has no way to know if the FPS is hooked up or functioning properly directly. So it looks at the Front O2 voltage during startup and warmup to see if you are rich/lean and the FPS is doing its job. If Front O2 voltage is out of range it throws the P1105.

Best guess to turn it off would be Periphery2, bit 3.

Or try Periphery2, bit 15 (Solenoids).

 

[obx tsi]

Ok, thanks. With my maft installed should I zero it out now that I have downloaded the latest rom? Think I am running very rich and that is what may have caused the code. With maft zeroed and then 560 put into the code I am assuming I would then start adjusting fuel with ecuflash and not the maft as needed? Thanks.

 

[Hubbard 0]

I tried logging lbs/min and didn't get any legitimate numbers. Is this a bug with older versions? I just upgraded to the most recent one on your site today and transferred my maps over.

Also, is there anything I can modify in EvoScan so that my RPM goes to zero decimal places, AFR numbers are to the 1 decimal place, etc? I'd like to cut down on some steps when I open logs and make them easier to look at. Right now I have to format the columns in half the logged items just so I can stand looking at them.

 

[Ceddy]

The newest version 1.9C has a fix for the AirFlow Calcs (lb/min and g/sec).

Are you having trouble logging lb/min with the new version?

The AirFlow Calcs steal a piece of code used by OBD2. The Evo guys(MrFred) did this first and report it to be pretty accurate.

But Boost Leaks will throw readings off a lot. (AirFlow thru MAF is reported, not AirFlow entering motor)



Another trick to find AirFlow:

g/sec = Load/80 x RPM/60
lb/min = (Load/80 x RPM/60) / 7.56

But the logged AirFlow Calcs should be more accurate.



Another trick for Estimated HorsePower:

WHP = lb/min x 9.15

(Not that accurate, but gives a rough idea)

 

[Hubbard 0]

I just downloaded the newest tonight. I'll probably get some logs tomorrow and see if it works then.

 

[Hubbard 0]

I got a log of airflow using lb/min.

If it says I'm flowing 80 lbs/min with my 5031, is it safe to assume I have a boost leak? Haha.

 

[Ceddy]

Those numbers seem high even with a boost leak.

Someone else tested and got high numbers also, but they had a leak.

The code is a port of MrFred's AirFlow Calcs, which is a direct copy and paste of the OBD2 AirFlow code. So its not a coding error. But the OBD2 code might not be as accurate as I expected at high air flow. The Evo guys seem to get good results using it though.


I'll change it to the calculated:

lb/min = (Load/80 x RPM/60) / 7.56

If people have similar inaccurate results.


Here is an Excel table that has lb/min numbers for each cell of the stock sized 2G timing map:
(2Byte Load IAT&Baro Comp will give most accurate result since it factors in Air Temp and Baro/Altitude)

You must be logged in to view this image or video.

 

[Hubbard 0]

Using that calculation I made a new column in my log. It seems way more accurate, yet it still shows me flowing 37 lbs/min which I doubt is right.

Here are the basics,

TPS	RPM	Load AirFlow(obd) lbs/min(calc)
14	2594	14	2	1
14	2594	14	2	1
14	2563	14	2	1
14	2563	14	2	1
14	2531	14	2	1
14	2531	14	2	1
14	2531	14	2	1
14	2531	14	2	1
14	2500	14	2	1
14	2500	14	2	1
14	2500	14	2	1
14	2469	14	2	1
14	2469	14	2	1
14	2469	14	2	1
14	2469	14	2	1
14	2438	14	2	1
14	2438	14	2	1
14	2438	14	2	1
15	2406	15	2	1
19	2406	19	3	1
19	2438	23	3	2
19	2438	25	3	2
20	2406	26	3	2
20	2406	26	3	2
20	2406	26	3	2
20	2406	27	4	2
36	2406	58	12	4
80	2406	85	12	6
98	2469	83	12	6
98	2406	84	13	6
98	2469	84	13	6
98	2469	85	13	6
98	2500	86	13	6
98	2531	87	13	6
98	2531	87	14	6
98	2563	88	14	6
98	2563	89	14	6
98	2594	90	14	6
98	2625	91	15	7
98	2625	92	15	7
98	2656	93	15	7
98	2688	94	15	7
98	2719	95	16	7
98	2719	97	16	7
98	2750	97	16	7
98	2781	98	17	8
98	2813	99	17	8
98	2813	100	17	8
98	2844	102	18	8
98	2875	103	18	8
98	2906	105	19	8
98	2938	106	19	9
98	2938	108	20	9
98	2969	109	20	9
98	3000	111	21	9
98	3031	112	21	9
98	3063	114	21	10
98	3094	116	22	10
98	3125	118	23	10
98	3156	120	24	10
98	3188	123	25	11
98	3188	126	25	11
98	3219	130	26	12
98	3281	133	26	12
98	3281	136	28	12
98	3313	139	29	13
98	3375	143	30	13
98	3375	148	31	14
98	3438	152	33	14
98	3469	155	34	15
98	3500	163	36	16
98	3500	168	38	16
98	3563	174	40	17
98	3594	180	41	18
98	3656	179	41	18
98	3688	175	40	18
98	3719	173	40	18
98	3781	172	41	18
98	3813	172	41	18
98	3844	173	42	18
98	3906	174	43	19
98	3969	175	44	19
98	3969	176	44	19
98	4031	177	45	20
98	4094	177	46	20
98	4125	181	47	21
98	4156	181	48	21
98	4188	183	49	21
98	4250	185	49	22
98	4281	188	49	22
98	4344	188	50	23
98	4375	189	50	23
98	4406	191	51	23
98	4438	192	52	23
98	4500	192	53	24
98	4531	193	53	24
98	4594	193	54	24
98	4625	195	55	25
98	4656	196	55	25
98	4719	197	56	26
98	4750	197	57	26
98	4813	198	58	26
98	4875	200	58	27
98	4906	202	60	27
98	4938	204	61	28
98	5000	207	62	29
98	5063	208	63	29
98	5094	210	65	29
98	5156	211	66	30
98	5188	213	66	30
98	5250	214	68	31
98	5313	217	70	32
98	5344	218	70	32
98	5375	220	71	33
98	5438	220	72	33
98	5500	220	72	33
98	5531	221	73	34
98	5594	223	74	34
98	5625	223	75	35
98	5719	223	75	35
98	5781	223	77	36
98	5750	227	77	36
98	5844	228	79	37
98	5875	230	78	37
98	5906	230	80	37
33	5969	198	19	33

 

[Ceddy]

How much boost are you running?

37 lb/min sounds close for a 5031. Were you expecting more or less?

That should put you around 340 WHP.
The upcoming version of VDR on EvoM should have specs for 2Gs, that should be easiest way to double check WHP.

 

[Hubbard 0]

How much boost are you running?

37 lb/min sounds close for a 5031. Were you expecting more or less?

That should put you around 340 WHP.
The upcoming version of VDR on EvoM should have specs for 2Gs, that should be easiest way to double check WHP.

I was on around 18-20 psi on that pull and had to stop at 6k due to knock. Still doing some tuning and getting my timing figured out.

I actually downloaded the VDR and put in my specs and I think that run said I was making under 300.

 

[jrohner]

I use one of the older versions, and it shows the same as MAP's dynojet.

 

[kiddsm95]

Now that summer is here and it's hot out I'm experiencing another issue. While using the A/C I notice that when sitting at a light/stop sign, that when I try to accelerate the car will bog until 2500 rpm. If I turn off the A/C, the car accelerates like it normally would.

Does the A/C switch bump the car into another map or something? Its frustraiting getting smoked by Miata's from a dig when I've got the A/C on.

 

[PieEyedPiper]

Now that summer is here and it's hot out I'm experiencing another issue. While using the A/C I notice that when sitting at a light/stop sign, that when I try to accelerate the car will bog until 2500 rpm. If I turn off the A/C, the car accelerates like it normally would.

Does the A/C switch bump the car into another map or something? Its frustraiting getting smoked by Miata's from a dig when I've got the A/C on.

I feel your pain. Whenever my AC is on it's like pulling a 5 horse trailer. Parasitic drive at it's best. Likely it's your AC that needs servicing. Mine too.

But maybe there's a way to tell the AC to shut off briefly after a gear change?

 

[kiddsm95]

With the A/C on my car only bogs between idle and 2500 rpms in 1st gear, from there on it behaves normally in all gears. When I turn the A/C switch off it doesn't bog at all.

The compressor pully spins freely, plus I just charged the system and verified the leakdown test via charging unit. So I don't think it's a servicing issue.

I was just wondering if I need to add 5° of timing in the suspected load range to remedy this characteristic, or alter something in another map.

 

[Ceddy]

Does the A/C switch bump the car into another map or something? Its frustraiting getting smoked by Miata's from a dig when I've got the A/C on.

The Idle Speed is raised and ISC has a different target step with the AC on.

Your ISC may need to be calibrated.
(EvoScan calls it "Speed Adjust Screw Mode")


But most likely the AC is just sucking up to much HP. Our motors don't make much HP at low rpm, and AC can use a lot.

I have my AC removed, so don't know if what you are experiencing is normal or not.

But maybe there's a way to tell the AC to shut off briefly after a gear change?

Going from a dead stop to ~5000 rpm, repeatedly, is probably very bad for the AC compressor and clutch.

 

[PieEyedPiper]

Going from a dead stop to ~5000 rpm, repeatedly, is probably very bad for the AC compressor and clutch.

Took me a second to get what you meant! haha. I'd have to agree, but it can't be much different than turning your AC on on the HWY @3krpm. Sure, 3k is not 5k, but what I was really interested in was just having the AC off in a gear dependent fashion( maybe using the VSS?) or whatever might benefit a guy who bogs every stop sign when his AC is on. The AC cycles on an off anyhow at whatever rpm it's operating it.
I have, however, been getting pretty good with my rapid fire, poke the AC button when at stop, method.

 

[GSXeclipsePSI]

Any news or updates on ceddy mods?

 

[Ceddy]

Any news or updates on ceddy mods?

Been working on Mods for the Evo5/6, should have them done in a week or so.

Have Dual Flashing CEL On Knock working for version 2. Flashes at different speeds for high and low knock, and keeps flashing for a second or two after knock ends.

Need to pick up some solenoids before I can test the Window Switches and Boost Control. Went to the junkyard but they didn't have any of the 3 port Mitsu solenoids, need to find them somewhere cheap, definitely don't want to pay dealer price.

 

[GSXeclipsePSI]

I would like to get back to SD tuning now that my car is all ok now. My g/f 1 month ago cut her leg open bad on a broken window from the bathroom at my house she was tyring to reach the house. Then some guy who was IN LOVE with my g/f wanted me out of her life and stabbed me 6x times a kitchen knife in the back and shoulder so I just finished getting car ready to drive. Keep you posted as to the progress. Ceddy let me know when your ready to start logging and tuning again for the SD.

I'm going to make a few logs in the mean timne.

TTYL

 

[Scientist]

Been working on Mods for the Evo5/6, should have them done in a week or so.

Have Dual Flashing CEL On Knock working for version 2. Flashes at different speeds for high and low knock, and keeps flashing for a second or two after knock ends.

Need to pick up some solenoids before I can test the Window Switches and Boost Control. Went to the junkyard but they didn't have any of the 3 port Mitsu solenoids, need to find them somewhere cheap, definitely don't want to pay dealer price.

Nice...If you need any guinea pigs for the Evo 5...let me know...I have atleast 2 cars.

Any luck on this making it to the EC5x ecus?

 

[Hubbard 0]

I'm having an odd problem with EvoScan and it might have to do with this newest update.

I click Start Datalogger and it connects like always, box turns green. Then it flashes yellow to green and reconnects.

This is the log of it:

Info: AutoReconect Retry#3
Info: OpenPort 2.0 Found.
Info: OpenPort Firmware v1.10.265
Info: Battery 12.504V
Info: Initialize Vehicle ECU...
Info: ECU ID: E4B0
Info: Connection successful...

It keeps reconnecting and never takes an actual log. It creates the file but there is nothing in it.

When I click Stop Datalogger, this shows in the box in addition to what is above.

Error: No Response from Vehicle ECU
Info: Datalogger Ended.

Obviously this points to an ecu issue, but I am able to pull the rom and flash a rom with no connection problems.

Any ideas?

 

[silentscreamer]

The only time i had a similar issue is when i had two different windows of evo scan open and occasionaly i get it when i have ecuflash and evoscan open at the same time. also make sure you have mut III(i would open evo scan to make sure the exact wording but i am not on my laptop ATM) i believe it is, not the 2g dsm one check for the vehicle type.

 

[Hubbard 0]

Does no one an idea whats going on with my car? I even rented an OBD2 Scanner and it would not connect to the car at all.

I'm having a serious problem with my car, I can't read the code it's giving me because evo scan won't read my CEL or let me log anything.

 

[Ceddy]

Does no one an idea whats going on with my car? I even rented an OBD2 Scanner and it would not connect to the car at all.

I'm having a serious problem with my car, I can't read the code it's giving me because evo scan won't read my CEL or let me log anything.

Make sure no fuses are blown, one fuse powers the OBD2 connector and a few other things.