mik711

Just checked the lock to lock on the truw steer box and it's approx. 3 1/3 turns with a set of 33 12.5 15 tyres on. Don't know if my lock stops are adjusted or standard. the box appeared a little stiff on tickover so maybe the pump on the 4.2 needs slightly more revs than the 300tdi used to.

Good to know. Think I'll leave it off for now and if I can work out a route for the pipework may re connect it at a later date. Will report back at the weekend with any results good or bad.

Got to wait till the weekend now before I can get back to it but will see if putting it back sorts out some of the over fuelling I'm getting. The plan is to get to a point where it will pass an mot then tune on the road with narrow band first as that's what I got off Nige then depending on results may finish off with wide band. As an aside, I'm assuming that I would need to re tune if I connect the airbox back up to the snorkel at a later date. The snorkel I fitted years ago when it went to 300 tdi but no hard off roading planned now so don't really need it. (looks nice though)

At work at the moment so can't check on the exact name of the pre installed map but pretty sure it says 4.2 auto in the title. In the general settings page it was set as 3500 cc v8 and injector size of 250cc. I altered the 3500 to 4200 assuming this would give me the correct req fuel. I left injector size as it was. Maybe I put it back to 3500??

The ecu came from hybrid from hell along with everything else for the conversion. Idle seems fairly nice at the moment and I wasn't particularly happy going and altering req fuel as it's what he gave me. Req fuel is at 14.1 when I input the engine size. I haven't altered the injector size from the original setting of 250cc but not sure if this is correct. Been looking and see them as being 200 or 250 depending on which site I look at. I have a NB lambda fitted but not using it yet as most people mention that it does nothing at tickover so it's switched off. Didn't realise that autotune needed it switched on to work. Will have a look at your ve map and see if I can compare and contrast with mine and extrapolate out. With the generic AFR table at the bottom of your reply, I've been floating around in the idle columns and in to cruise when I've been driving round the yard but obviously can't do much else with limited space. If I look at your ve bins and compare to mine I should be able to adjust the table (saving the original beforehand) and see if I can smooth things out and lessen the fuelling slightly. This will be my last message here this year and so I will wish everyone here a happy and prosperous new year and if sober enough tomorrow I will get back to the garage and have a play. Cheers everyone!

So, a quick update on the progress made so far. MAP all connected up and the ecu running off that rather than TPS. The car fires up on the second turn of the key and the ASE and WUE have it idling at 1150/1200rpm and dropping to a steady 850rpm once warm. Had a go at the WUE autotune this morning so will see if its any better on the next cold start. It deviated slightly higher than the original curve on the graph so I'll see what happens. MAP is reading about 39/40kpa on tickover and I've been round the hoses, plenum etc. with easy start to check for any leaks and all seems good. Had a drive round the garage yard and it was rough! Switched autotune on and did a couple of laps, bit of reversing etc. and compared the new ve table with the old and burned the results to the ecu. Noticeable difference. Far smoother but running rich still. The trouble is I'm only hitting the top left corner of the graph and can't do anything about that until I can get it on the road on the way to the mot station. If I run analyze live whilst on the way there it will update the ecu as i drive and I could burn to the ecu once there. I could then fiddle with the ve table at the revs where they will be testing the emissions to get it a little leaner and hopefully pass, or i could drop the req fuel a little to achieve the same result but across the table. The garage its in at the moment has a gas analyzer so I may be able to get it somewhere near before I get out on the road. Should I be touching the req fuel setting at all or not . Seems to be differing views on this across the forum, some say yes others don't touch. Opinions welcome and thanks for them all in advance.

I figured about about 4mm I/D as well. Can get a brass tee piece from eblag for about £2.00, add some silicone vacuum hose and it comes to about a tenner. I'll get it ordered right now. cheers.

just been on Niges Megasquirt website and due to an operation he's closed until Jan 4th. Could someone on here be able to supply me with the information for tee piece size and hose bore needed for the MAP setup.

Cheers Bowie69, will set it to open loop then. FF. I've looked through everything and no hose or tee piece. As I said earlier, because it wasn't mentioned in the instructions I figured that ms2 didn't need MAP for its calculations. It's only from looking on here at ms1 stuff and my graphs having TPS instead that I realised I may be missing something (Been said about me before). Will get to the garage again tomorrow and update the owner about whats going on. He's sorting out an engineers report for me as DVLA weren't happy with me sending off the logbook for changes of engine capacity and fuel without one. Wish I'd known that five weeks ago! On a side note I'd just like to say that before I took this project on I scoured the internet and various forums for info and this site and others gave me the confidence (hopefully not misplaced) to take the plunge not just with megasquirt but the engine swap as well. Engine positioning, what exhaust what rad etc Without you people I'd be lost. Thanks.

There doesn't appear to be anywhere to turn off closed loop control, I can just choose closed loop or open loop or in idle control set the idle valve type to none.

P.S. It definitely isn't a race car!!

Ok. Will give Nige a bell in the morning. I take it you get a tee piece and take it from the pipe on the FPR to the ECU? Is it still worth switching the idle stepper off or should I wait for the MAP to be connected before I do anything else.

The full ms2 kit including harness, IAT sensor, trigger wheel, brackets and ECU were bought brand new from Nigels emporium and after fitting the 4.2 and auto box in the 1985 90 pick up they were all fitted according to Nige's instruction manual. the kit included a short length of silicone hose to replace the old one on the FPR to plenum(by the idle stepper). There is no mention in the fitting instructions of a MAP pipe to the ECU nor was anything supplied in the kit. The only things changed in the ECU mapping is REQ fuel dropped from 14.1 to 11 and the cells in the bottom left corner as mentioned above. There is a NB lambda fitted but disabled in EGO control. All the graphs in tuner studio seem to have TPS on the vertical axis and as there is no mention of MAP in instructions i assumed this was correct. I can get back to the garage on monday and try with the idle control switched to none.

With the closed loop idle I can set the controller to none in idle valve type in the startup/idle settings unless theres another way to disable it. the pump is a range rover efi pump, standard regulator and injectors. certainly running rich at tickover(not quite eye stinging now but still rich) I tried turning map off in map settings as I don't have anything connected but ms2 puts a warning up on screen that it must be on. Even with it on I still get tps up the side of the graph.

Yep the stepper on the back of the plenum. I'm figuring its working as wue seems to be working but the garage man has one hanging about somewhere that he's going to swap out to see if theres any difference.