XR2i efi system

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

Does anybody here know anything about them?
just ive got a running problem on my nextdoor neighbours. i want to get it off my drive!!

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

whats the problem?

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

right, first of all, he was overtaking then it cut out as if it had run out of fuel, i did the hg as the compression was down in 2+3, now compression fine, to start it, you have to d/c the ICV and air intake temp sensor, then when running plug the ICV back in and it will idle, then if you plug the ait back in then it cuts out, when trying to accelarate with it off, it just sounds like its being starved of fuel, throttle open 50% and the revs die off, max it will rev to before doing this is 2500-3000, ive put in a newish ait sensor, but no difference made.
let me know what you think.

Level 7 User Joined: 06 Sep 2004 Posts: 230

danlp6,

This is EXACTLY the same problem my 19 has had a few times in the past! (knowing that is not a 19 maybe still helpfull) The problem with my car was in the connector of the TPS. Just disconnect it and give it a real good spray of contact spray (or wd40) put the connector back and your fine. I think i have to put a new connector on sometime cus the problem keeps coming back every half year (when your in the middle of nowhere on the roads) and i have to spray the connector again. Cool

I think (not knowing that much) the ECU won't get or get a wrong reading from the TPS and there for won't give fuel hence the empty fuel tank feeling. Most funny (or not) was the first time i had the problem my fuel tank was completely empty besides 3 drops of fuel or so. So i thought that was my problem Shocked

Good luck

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

right, ok i'll give that a go, let you know what happens.any other ideas anyone?
Many Thanks

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

Right, just given it a go,i also cleaned all the elecy connections that i can see, with electrics cleaner, made no difference.
This is really annoying!!! Evil or Very Mad

Level 7 User Joined: 06 Sep 2004 Posts: 230

Hmmmzz not much of a help then. Sorry, don't have any bright ideas left for today

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

No worries mate, got nothing to loose by trying stuff!

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

righty mate as its eecIV and really shite it needs a bit of detail I will post up tomooz as I need to go in a mo

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

righty this really could be a load of things as the systems notoriously crappy.

the fact its starting with the ait and ICV unpluged leads to a fueling problem.

Unplug the CTS and see if it will start with the other sensors plugged in. You may need the throttle.

If the car floods btw throttle fully open initiates flooded engine clear, which basically gets rid of all the fuel in there but stops the injectors firing.

I'd look here before the ECU as they have a habit of dying due to dodgy engine earthing.

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

Ok many Thanks
I'll give that a go when im home from college. let you know what happens

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

right given it a go, still wont start.

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

unplug the MAF and see what happens.

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

i am assuming the maf is the black box at the back of the bay with a vacuum hose and a 3pin plug going into it, if i unplug gthis, and plug in the ICV, and ait, it will not start, unplug the ICV and ait, it will start, plug in the ICV it will idle, if i pick up trhe revs and plug in the ait it will rev to 4500-5000 and 75% throttle before dying off.

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

unplug the MAF only and see if it will start

unplugging the maf will make it look at the TPS for its main input instead.

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

nope, tried that, still wont start.

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

any ideas chris?
or anyone

Posted: Wed Apr 20, 2005 11:23 am

danlp6 wrote:

i am assuming the maf is the black box at the back of the bay with a vacuum hose and a 3pin plug going into it, if i unplug gthis, and plug in the ICV.

I think I have a spare one of these in may garage, you can have it if you want it,

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

its fucked then innit.

like I said it could be absolutely anything.

Theres no point in me or anyone else runnign off a long list of things when you can just as easily check it all yourself or just get someone in to look at it.

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

Right, it now starts with the maf sensor unplugged and the ICV and ait also. it will idle with the maf sensor unplugged. I personally rekon its the ECU now. Someone suggested the ECU had gone into limp mode?also another thing, his ECU is the 1AFA, will any other ECU plug in and work?i.e BLIP?
Cheers