gav-

Hello, 10/15 years ago I used to use docklow Land Rover services near Leominster, they were brilliant. I don’t know if they are still trading, but Google maps still looks like it’s there if that helps?

Hello, I believe it’s possible to cut laminated glass (windscreen) using a diamond disc angle grinder to perform the cut? I have to cut a curved screen from a defender screen and before I purchased a screen I thought I would ask if anyone has successfully done it in the past? thanks Gavin

Hello, just to close this thread down, the problem turned out to be the ecu and a protection diode had blown! Fingers crossed it will fix things and I’ll have a working engine again! Thanks for everyone’s help

Photos of the pcb

Hello, thanks for your replies it’s appreciated. I brought a noid light and I the light doesn’t light up when the pump primes or on crank. I know that the cables are ok to the injectors as if I disconnect the db37 and connect the injector circuit manually I can hear them click! I don’t know how it’s happened but I think there is something wrong with the ecu!

hello, i cant determine if the injectors are openng during the priming pulse or during a crank. I have fitted a spare injector to one of the injector cables but cant hear or feel its opening. All of the plugs remain dry. I am wondering if my multimeter is quick enough to see the voltage pulse of the injector opening or not? I have attached a couple of datalogs, it looks like there is some fuel getting into the cylinders as the RPM does increase and it sounds like it fires and then dies. I am now wondering if its a fuel issue!! goign to try a new fuel filter, nothing seen in the old one though. or am i going down the wrong route? 2020-06-07_18.43.22.mlg 2020-06-07_18.45.19.mlg

I did think that but with the throttle closed it 31 and foot to the floor it’s 254 during the calibration. Unless this can change during crank??? flood reset is at 200,

Hello, I have attached a couple of videos, I think the reset issue was due to the battery being slightly flat, its still not firing the injectors during the crank. the videos show the ecu red spark light coming on but nothing else. by the way the lambda and pwm are disconnected, hence the dials reading odd! Is there anyway of testing the injectors, or is there a setting i have missed in tunerstudio that could stop the injectors from operating? VideoCompressor_20200603123423767.mp4 VideoCompressor_20200603123407783.mp4

By disconnecting the plug at the ecu, I have checked that there is voltage when the ignition is on through the injector circuit to the ecu. And I have rerouted the 3 earths to the engine block. I have one main cable from the battery to the engine block and all grounds connect to thIs same point On the engine block. When I switch the ignition on, the fuel pump primes, and i see all the gauges on tunerstudio. When I turn the key to crank, I loose the connection to tunerstudio (engine continues to crank) and secl restarts, and all the gauges appear with a crank rpm of 130 to 150. There is voltage to the injectors but the ecu is not switching them? The only thing I can think is that the reset (if it is a reset) stops the ecu from switching the ignitors?

Further fault finding tonight, is reset noticeable by tunerstudio loosing the connection during the crank and the SECL counter restarting? i am wondering if it’s the earths from the ecu yo the engine block??

Yes standard ms1 and edis. fuel pumps runs all the time, tunerstudio shows a 130-150Rpm of engine when cranking I have got 12 v feed to the injectors which drops to about 10v during cranking, (measured between injector feed and earth point on engine) if I connect a voltmeter to an injector connector I don’t see Any volts at all, or if I connect a voltmeter to the two wires going to all the injectors. The ecu doesn’t appear to be switching the injectors? I am wondering if I should connect the earths from the mega squirt directly to the battery? They are currently going to a shared point on the engine block. tunerstudio is showing no resets in the real-time display.

Hello, I am sorry to have to come back and ask another question but, after resolving my previous issue with a backfire(lead to the coil was wrong from edis) the engine ran well and I decided due to lack of time to disconnect the ecu and put it into safe storage for the past 5 months! so thinking this will be a good time to start work on it again, I plugged it back in and its failed to start. I don’t seem to be getting any fuel through to the injectors, crank is at 130-150rpm and a very strong spark, but removing two plugs they are very dry, and spraying a bit of cold start into the inlet the engine fires and then dies. fuel pump primes and return is flowing back to tank (checked ok) nothing has changed with the wiring for the past 5 months and I really can’t work out where to start!

Just a quick update- I have some spare injectors now so as soon as Father Christmas no longer needs help I’ll get back into the garage! Thanks for all your help! Have a good Christmas!

Thanks

Are all Land Rover v8 Hotwire injectors the same (excluding the gems etc?) I notice some have a green band in the middle whilst others had a green band at the top. But both look the same other than that. Thanks

It’s looking like the no7 injector is blocked. It clicks ok with 12v applied and removing the plug can also test the ecu wiring. the spark is ok - checked with one of those visual colour tools that is fitted between the plug and lead. So now need an new injector, reading online - Vauxhall’s vectra are a good replacement??? They also appear a lot cheaper!

Thanks, is there a simple way of testing an injector? I’ll check out the wiring later but not sure on testing an injector?? (The Bosch Spark plugs were not planned, just a opportune buy a number of years ago!)

So removed all of the plugs and replaced them with Bosch WR7DC ones, however plug 7 was no were near as carboned up as the others. It started back up and the popping is still there but maybe not so often??

Its never been properly ran on mega squirt, I changed over and then my daughters arrived and it sat for 8 years! i have tried two different msq, one from hfh and bowie69. On both engine runs fine but still popping away! If I lower the reg fuel it’s gets better but doesn’t go away completely, if I go to far with dropping reg fuel then it just stalls. i have been listening and looking but can’t find any vac leaks plus it’s so erratic. It’s Very random it’s a 3.5 low compression with old Hotwire efi

I am using BPR6E spark plugs reading all of the posts on here about spark plugs- should I use BPR6ES? I have some BP6ES plugs would they be worth trying??

Thanks for the comments and suggestions. One thing is have realised is that the lc1 wideband switching point is incorrect, it’s set at 0.5xxV and I think it should be 2.432V. So the exhaust measurements are way out. When I get a minute I’ll make the change I’ll run it again! (Sorry best to check the basics!) yes your right it’s an ms1 too!

Thanks everyone for your help. I have attached a datalog file, but too be honest i am not sure what i am looking at! The SEcl number counts from 0 to 255, and then resets, so dont think its that. I did play around with the fuelling which seemed to help if I made it leaner? (could it be a stuck injector???) The ECU was brought about 10years ago, its an ms2 from extra efi (very nice chap), unforunately though due to family, work etc everything got put away and now i have the time to work on it again, so essentially its a new install. I have checked the timing and that is spot on. Its running EDIS, and other than the popping it sounds and runs nice, except i cant run it very long as it sounds like a gunshot going off!!! ITs a wideband lc1 02 sensor too. 2019-11-28_20.17.09.msl

Thanks, I am not too sure if it’s reseting (oh how to tell to be honest) I can see at the bottom of the rhs of the screen on the video, that there are 3 lights, which are flashing between red and green as it running? Is this what I need to look at? There isn’t anything that comes up as a reset????

Unfortunately the plug wires didnt fix it! I have attached a video of it, that is the sound from the exhaust!!! its not me hitting something. I have tried two different maps and both have the same affect, although disconnecting the map hose made it run awfully, but I dont think there was a popping sound! I wondered if the pwm could be faulty or if there was a vacuum leak (i cant hear/find anything though!) Any ideas where to look next??? (thanks) Video.MOV CurrentTune.msq

Just an update - it looks like it was lead issue - plugs 2&4 were wrong! Thanks for helping! (But need to check more than once it would seem!!)