stepper motor question (but not what you think)

[Andy70]

Hi again, I was looking to replace my stepper motor as my idle is still high, or erratic, ticking over high or hunting when engine is warmed up etc (surprisingly it settles better when engine is not up to running temp) and yes I have cleaned it so i thought I best change it, now after reading several old threads on here regarding that, and a vid off you tube, from Stevie here, I decided to go down the OEM route for peace of mind, now the on line places that sell them want p&p, but I have a range rover dealers not far from me and they would have one surely?

Called the parts just before closing so too late to sort it, however he can't source the part without a Range Rover reg, so I said I'll find one and get back to him.... But he recons that I wouldn't get any joy probably as they stop making parts after 10 years, so question.... where are the TVR specialist part suppliers getting OEM ones if lad rover them selves can't? Has someone bought the rights to make them or something? hmmmm!

[Belle427]

Before condemning it have you carried out any basic checks such as setting the base idle and having a look for vacuum leaks?
This page is a great source of info and explains how to do most stuff.
Dont go loading the parts cannon just yet.

http://g33.co.uk/pages/technical-fuel-injection.ht...

[Andy70]

Belle427 said:

Before condemning it have you carried out any basic checks such as setting the base idle and having a look for vacuum leaks?
This page is a great source of info and explains how to do most stuff.
Dont go loading the parts cannon just yet.

http://g33.co.uk/pages/technical-fuel-injection.ht...

,

i've checked for vacuum leaks as I'm aware that that can affect tick over, but setting idle speeds is beyond my poor little brain, that would be one for the mechanic when it goes in, unfortunately he is on his hols for 10 days, so i was sorting what I can out to make life easier for him. I looked at that link you sent and that means nothing to me, electrics especially auto electrics have never been my strong point, talking of which, I sent a pic on another thread I posted regarding a connector that has nothing plugged in, there is also a 2 pin plug that's just hanging there?????





Any deas?

[Andy70]

Any way, without diverging too much, I was merely curious as to where OEM stepper motors came from if rover don't make them any more, but, thanks belle for the tips, I will delve further first, I did have the common sense to clean inside where the stepper motor fits believe it or not before i read your link as if the motor is grubby, chances are the hole is too, i have plenty of solvent spray and softish round brushes that cleaned in there nicely. Cheers!

[M_A]

Part number for the stepper motor is ERR5199 or ETC6660. It's the same part.

Island 4x4, Britparts, John Craddock, Paddock Spares & Accessories - all supply the legit part.

Showing less choice than a few years ago but easy to get a hold of the part.

Think Land Rover V8 parts suppliers.

TVR suppliers buy the same part and whack the TVR tax on it and sell at £120.

Just found out JLR sell it at an eye watering £432.70

https://parts.jaguarlandroverclassic.com/err5199-m...

[BritishTvr450]

You might be best served to buy Rovergauge software and the cable that plugs into the car that reads Ecu information or your pissing in the wind.

From the data that shows, you can narrow down where the idle problem lies.
A few friendly people on here are able to read and diagnose the information.
Contact Blitz racing on here for the cable and where to buy the software unless someone else can advise.
Idle problems are usually
1 Poor base idle set up
2 Faulty temp sensor the Ecu reads
3 A vacuum leak somewhere
4 Air flow meter or wiring to it
5 Stepper motor

Heat in the engine bay is often the cause of failure for 4 and 5
and standing for years can be the cause of failure for number 2.
All play there part in the idle so chucking money at it is not the thing to do until you have some real time data and can discount points 1 and 3 which are the cheapest to ascertain.
Point 3 requires a smoke tester but again Rovergauge is useful in pointing towards these answers.

[Andy70]

M_A said:

Part number for the stepper motor is ERR5199 or ETC6660. It's the same part.

Island 4x4, Britparts, John Craddock, Paddock Spares & Accessories - all supply the legit part.

Showing less choice than a few years ago but easy to get a hold of the part.

Think Land Rover V8 parts suppliers.

TVR suppliers buy the same part and whack the TVR tax on it and sell at £120.

Just found out JLR sell it at an eye watering £432.70

https://parts.jaguarlandroverclassic.com/err5199-m...

Brilliant mate thanks for that, As advised I'll have a more thorough rummage before i buy, but that's great

[Andy70]

BritishTvr450 said:

You might be best served to buy Rovergauge software and the cable that plugs into the car that reads Ecu information or your pissing in the wind.

From the data that shows, you can narrow down where the idle problem lies.
A few friendly people on here are able to read and diagnose the information.
Contact Blitz racing on here for the cable and where to buy the software unless someone else can advise.
Idle problems are usually
1 Poor base idle set up
2 Faulty temp sensor the Ecu reads
3 A vacuum leak somewhere
4 Air flow meter or wiring to it
5 Stepper motor

Heat in the engine bay is often the cause of failure for 4 and 5
and standing for years can be the cause of failure for number 2.
All play there part in the idle so chucking money at it is not the thing to do until you have some real time data and can discount points 1 and 3 which are the cheapest to ascertain.
Point 3 requires a smoke tester but again Rovergauge is useful in pointing towards these answers.

thanks mate much appreciated, I'll double check everything

[BritishTvr450]

Andy70 said:

thanks mate much appreciated, I'll double check everything

Just buy Rovergauge!

[PabloGee]

Rover Gauge cable is available on eBay - it’s the only place I’ve ever seen it.

https://www.ebay.co.uk/itm/315507761855?mkcid=16&a...

The software is free, download here from the assets - runs best on a PC (I had it working on my Mac with a virtual machine, but it had a couple of display issues), just choose one of the ‘windows’ versions depending on the ‘bit’ spec of the laptop you have. And follow the instructions on the web page:

https://github.com/colinbourassa/rovergauge/releas...

When running it, you basically ‘start log’ then ask kind people on here to help decipher.

[blitzracing]

RoverGauge has the ability to move the stepper back and forth, so you can see its affect on the idle. You can also see its position with reference to the target idle, and you should see it adjusting. There is not that much to go wrong with the stepper other than carbon build up, or possibly air getting in around the thread or casing.

[Andy70]

BritishTvr450 said:

Andy70 said:

thanks mate much appreciated, I'll double check everything

Just buy Rovergauge!

is it like a fault code reader then? Ill look it up then, thanks

[Loubaruch]

Its much more than a fault code reader as you get a visual display on your PC screen of all the main variables Its Brilliant!

As said above if the fault is not apparent from the visuals then you can load a file with running information and a kind soull on here will decode it and identify errors or unusual behavoir.

[Andy70]

i see, I'll look into it, I did notice some sort of cd though, my cheap laptop doesn't have a drive for one, the ex took the good one, so i just got a cheap one as it works oh well

[RayTVR]

Not having a CD drive is not a problem, software can be downloaded from the inter web.

[Andy70]

RayTVR said:

Not having a CD drive is not a problem, software can be downloaded from the inter web.

ok great, I got one saved in my ebay

[BritishTvr450]

Andy70 said:

ok great, I got one saved in my ebay

First great step in your quest

[steviegtr]

BritishTvr450 said:

Just buy Rovergauge!

Hi Steviegtr here. I found the cable on ebay & have downloaded the software x86 version & it all seems to be running on pc. Question before i buy the link cable. My laptop is a newish one with win 11. USB ports etc etc. But the cable shown shows 3 pins. When i get to the ecu is there a 3 pin socket to accept this or do i need to make a patch cable too. ????
Any help appreciated.
Steve.

[blitzracing]

The 3 pins on the RG cable align with the 3 connectors in a 5 pin housing so no patch cable needed.