12 replies to this topic

[elvisthepizzaman]

Ive finally acquired an ACR4 with the Rover 3 pod and the 30214000 cable for the mpi. Can anyone give me an idea to what all this means?

When I hooked it up and went through the sequence It pulled 6 error codes. To my understanding if something is fixed the code still exists till it gets cleared so I dont know how long these have been in there but here they are.

06 Map sensor voltage too low
08 Throttle voltage too low
11 Battery voltage too low
02 coolant voltage too high
07 Inlet Air voltage too high lamp or comm circuit
13 fuel pump relay or purge

Then I did a component comparison between off and running.
OFF:
coolant 64C
air inlet 54c
map 83.5 kpa
tps 4.3
coil 1 charge time 0.79 ms
coil 2 charge time 2.14ms
injector 2 P/W 7.53ms
injector 4 p/w 7.54ms
stepper position: 104 steps
crank bad
cam bad

Running:
rpm 937
coolant 73C
air 50c
map 36.4kpa
coil 1 1.55
coil 2 1.58
injector 2 .89ms
injector 4 .87ms
stepper position 36
crank good
cam good

For good measure, I reset the codes to see what comes up from driving it tomorrow and next week.
I also noted that the communications between the reader and the ecu became a bit sketchy or irregular when it was running vs when it was not. Anyone have any suggestions to improve this?

Edited by elvisthepizzaman, 06 September 2008 - 01:03 AM.

[koss]

A flat battery usually puts up codes like that. Clear them and see if anything comes up after your drive.

[DaveRob]

as above ....take note of the codes you have found.... then clear all error codes...... run the car for 10 or 15 mins till its up to temp and then intrrogate the ecu again.... this way you find if anything is still at fault cause the flags will set against the faults IF they havnt been resolved.

Hope this helps

Rob

by the way... coolant should get to 88 degC.....you cant do a proper test till its fully warmed..... check your thermostat for being the right temp..... or just change it anyway for the sake of £2

Edited by DaveRob, 06 September 2008 - 08:19 AM.

[Sprocket]

Where is the TPS reading when running?

The TPS with the engine not running looks odd, TPS is normaly less than 0.5v with a closed throttle??

[elvisthepizzaman]

I did not get a reading for the TPS when it was running. the ACR4 kept losing connection and I just forgot to get it.

The reading I posted was given as 4.3 degrees so you get to watch it go from 4.3 to 74ish degrees when pressing the throttle.

Edited by elvisthepizzaman, 06 September 2008 - 07:27 PM.

[tmsmini]

There seems to be an issue with the MEMS ECU and the ACR4. I posted a question on the SP site and contacted them quite awhile back. Their suggestion was to buy the new cable, but it actually worked worse than the old one.

I am not sure if the posts are still around as they have redone things since they were purchased.

PS: there is a way to get the ACR4 to display expected values. I don't remember exactly, but perhaps it is a press and hold on the enter or OK button.

Edited by tmsmini, 08 September 2008 - 10:47 PM.

[elvisthepizzaman]

tmsmini: yes, you press OK when viewing the components to get it to display the range or expected values. I kinda want to get the other cable for the vag citroen 30212400 cable and see if it works. its the same connector and from looking at the internals of the connector if its not using the same pinouts I think I can swap the wires around to fit the rover system.

[elvisthepizzaman]

Well I finally got the car to stall out and I also managed to capture the sputtering on cold startup this week. I hooked up the scanner and it said I had two errors:

06 Map Sensor Circuit, Logged, Sensor output voltage too low
13 Fuel Pump relay or purge valve or MIL lamp or comm circuit, logged, ECM output circuit

So......does this mean that I need to get a new map sensor or should I be searching for grounds to clean? and what the heck does the 13 error actually mean? What should I look at?

[Sprocket]

Check ALL your wiring!

Grounding issues on EFi systems, not just Minis, are a major ball ache. They are some times termed as ground gohsts. All sorts of ground paths and floating voltages happen. Just be thankfull that the production ECUs have really good voltage protection

Map sensor, possibly faulty. Not sue what the code 13 is getting at though

[elvisthepizzaman]

Well I do believe my stalling problem is fixed. First cleared the two fault codes that were recorded(again), then I went and cleaned the ground just behind the ECU.
I drove the car on sunday to an all British car show, took third in my class, then drove it on Monday and Tuesday. Yesterday and today the temperature was about the same as last week when I was still having the car stutter and stall so thats the same and I drove the same routes, but I was able to hold a both a low steady and high steady rpm without it bucking or stalling It was also idling at a bit smoother and when I checked the ECU for errors it said there were none.

I never thought it was that sensitive to ground condition as the contacts were fairly clean when I unbolted them and I tried to read a voltage difference across it but all I got was battery normal.

I still have a rough cold startup, for the first second or two it just bucks and struggles then suddenly its ok. I just changed the fuel filter so thats not the problem, mabye I should clean the ground in the boot next.

I would still like to have a list of the errors that can be given out and what they mean.

Edited by elvisthepizzaman, 17 September 2008 - 02:32 AM.

[james0133]

Ive finally acquired an ACR4 with the Rover 3 pod and the 30214000 cable for the mpi. Can anyone give me an idea to what all this means?

When I hooked it up and went through the sequence It pulled 6 error codes. To my understanding if something is fixed the code still exists till it gets cleared so I dont know how long these have been in there but here they are.

06 Map sensor voltage too low
08 Throttle voltage too low
11 Battery voltage too low
02 coolant voltage too high
07 Inlet Air voltage too high lamp or comm circuit
13 fuel pump relay or purge

Then I did a component comparison between off and running.
OFF:
coolant 64C
air inlet 54c
map 83.5 kpa
tps 4.3
coil 1 charge time 0.79 ms
coil 2 charge time 2.14ms
injector 2 P/W 7.53ms
injector 4 p/w 7.54ms
stepper position: 104 steps
crank bad
cam bad

Running:
rpm 937
coolant 73C
air 50c
map 36.4kpa
coil 1 1.55
coil 2 1.58
injector 2 .89ms
injector 4 .87ms
stepper position 36
crank good
cam good

For good measure, I reset the codes to see what comes up from driving it tomorrow and next week.
I also noted that the communications between the reader and the ecu became a bit sketchy or irregular when it was running vs when it was not. Anyone have any suggestions to improve this?

Hi, I am looking at buying a SP ACR4. Can you tell me if this is all the info you get from it for the Mini. Or is there more that you did not list in your thread?
Can you change much with it or just clear codes?
Do you think is is worth having for the Mini?
Will it cover Air Con on a Jap Mini?
Any info on the system would be great.

[yasan39]

Hi, good day to you
I am looking at buying an ACR4. Can you tell me if this is all the info you get from it for the Mini. Or is there more that you did not list in your thread?
Can you change much with it or just clear codes?
Do you think it worth having for the rover Mini?
Any info on the system would be great.


So give some pictures of this tool

Thank you

My e-mail is [email protected]

Ive finally acquired an ACR4 with the Rover 3 pod and the 30214000 cable for the mpi. Can anyone give me an idea to what all this means?

When I hooked it up and went through the sequence It pulled 6 error codes. To my understanding if something is fixed the code still exists till it gets cleared so I dont know how long these have been in there but here they are.

06 Map sensor voltage too low
08 Throttle voltage too low
11 Battery voltage too low
02 coolant voltage too high
07 Inlet Air voltage too high lamp or comm circuit
13 fuel pump relay or purge

Then I did a component comparison between off and running.
OFF:
coolant 64C
air inlet 54c
map 83.5 kpa
tps 4.3
coil 1 charge time 0.79 ms
coil 2 charge time 2.14ms
injector 2 P/W 7.53ms
injector 4 p/w 7.54ms
stepper position: 104 steps
crank bad
cam bad

Running:
rpm 937
coolant 73C
air 50c
map 36.4kpa
coil 1 1.55
coil 2 1.58
injector 2 .89ms
injector 4 .87ms
stepper position 36
crank good
cam good

For good measure, I reset the codes to see what comes up from driving it tomorrow and next week.
I also noted that the communications between the reader and the ecu became a bit sketchy or irregular when it was running vs when it was not. Anyone have any suggestions to improve this?

[elvisthepizzaman]

Just a bit of an update:

I tried disconnecting various sensors while the engine was running and they all trip an active fault within the ECU.

I figured out what was causing the map sensor voltage too low problem. The wiring harness was not clipped to the throttle body and engine vibrations were causing minute fretting on the contacts of the sensor and the signal was getting cut out to the ecu at random times which was also causing my bucking at steady speeds. This also tripped the strange general error 13. I sanded the contacts and clip internals then properly attached the harness to the throttle body mount and the error has stopped coming up.