Noty quite hardcore but you guys know a hell of a lot more about rover motors than I do.
This is a 94 D90 that is basically stock
And it is my fathers truck....

Dads wife got int the truck, backed it out of the driveway, turned it off and now it will not start..

Symptoms..

Does not start. Kinda wants to catch if you floor it.

Info..
Some bozo apparently was able to get it started by pulling a fuze..
Don't ask me which fuze, The truck is in bakersfield and I am in Vegas.
Plugs on the right side had a reasonable amount of soot on them. The left side was a lot cleaner.

It sounds like by pulling a fuze you turn the truck into "limp home" mode. Which I would expect a rover to have.

I kinda think it is a bad O2 sensor. However, not having the truck here makes it a lot harder to diagnose.

Any ideas? suggestions??

Tech,
Next weekend it is getting a rear ARB and a 97 factory hardtop :flipoff2:

Is it worth doing a writeup on the ARB install or has this been rehashed too manny times over here?

An oxygen sensor will not cause a no-start condition. Sounds incredibly similar to a truck that AFIRover and I finally got going. In our case, it was a bad ECU ground line, but that was an oddball.

Do the usual, check for spark and fuel, then go from there. I usually look for bad ign. amp, rotor, coil to begin with.

PT

Inertia Switch? Seems like something fuel related, since it "wants to start"...

Hooked up a test light, it is getting spark..
You can smell the fuel.....

Funny thing is that it does not seem to get the plugs wet.. So I would be suprised if it was flooding all the time.

Oddbal is what this truck is designed for..

The taillight wiring harness was mounted directly under the rear body mounts (in between the mount and the frame) Took the LR technicians a LONG time to figure out :rolleyes:

I just wish I was there to actually test things..

Time to check to see if the injectors are opening. Test light again!

Next, check timing. The "wants to catch" is leading me in this direction.

can you hear the fuel pump run? At least half the D-90's I 've had in that would'nt start but almost wanted to had a bad connection in the harness that goes from them main frame harness to the fuel pump (located in the passenger side rear fenderwell down by the rear light harness jumble) Its a silly place to have a plug that can cause so many problems. It will sort of randomly contact giving little bursts of fuel pressure that will almost start the thing, but not quite. I usually cut the plug out and wire direct.

Matt Browne
Overland Engineering

Tell us more about that ARB install! Where'd you get an ARB in Bakersfield? :D

I don't have any starting advice, sadly.

You might check the connection to the ICM (the little computer on the side of the dizzy). There's some ground wires that can come loose on it, some are hard to see/get to.

Coils don't usually go bad, but the wires can come off (as you know).

Hmm...I'm not thinking injectors, those don't seem to just 'go bad'...but if the plugs aren't soaking, then maybe no gas.

There's also the idle air control switch that senses the cold air and automatically adjusts the fuel/air mixture. My LWB occasionally stalls when it is cold at idle and sometimes won't start for a while (10-ish minutes to an hour at times). Of course check the connections and ground from the air-flow meter on the air-intake.

Hmmm....weird. I know it sucks to try to troubleshoot a vehicle on the phone. :( Good luck.

There was this bozo that used to live in Las Vegas..
He left some junk behind and in it was a small present ;)

The fuel pump does run.

And like I said. Apparently the shop was able to "pull a fuse" and get the truck started..

I HATE not being able to put my hands on something..

The AF meter has me wondering.. It is just odd that it started, drove 10 feet, turned off and is now dead (cept for the pulling the fuse thing)...


the more I deal with Rover motors the more I like the 5.0 I am building for my 60 ;)

Hmm...I'm not thinking injectors, those don't seem to just 'go bad'...but if the plugs aren't soaking, then maybe no gas.

There's also the idle air control switch that senses the cold air and automatically adjusts the fuel/air mixture.


Mike, Mike, Mike.

My comment about the injectors was to determine if the ECU is telling the injectors to open, not to see if the injectors themselves were opening. The 110 AFI and I had such trouble with had a bad ground to the ECU that kept the injectors from opening.

Idle air control has little to nothing to do with temperature. Temperature is detected by the coolant and fuel temp sensors and the ECU lengthen the time the injectors open to enrich the A/F mixture. The IAC valve is there to compensate for changes in engine load and reacts to maintain an even idle.

Seems to work now.

Apparently, it was the connection betweent he air temp sender and the harness. It got corroded.

I gotta know, is it common for a rover's electrical connections to get corroded???? Fawk, the truck is only 10 years old!!!

I guess some dielectric grease is on the horizon..

Seems to work now.


I gotta know, is it common for a rover's electrical connections to get corroded???? ..


.......................yes