Jimny - stalling at high speed

Ziemniak · 02-26-2009, 06:48 PM

Hi,
I have following problem with my Jimny 2001 (1.3 l) that I bought 2 weeks ago. I know that previous owner had similar problems.

When I drive over 110 km/h for more than 2-3 minutes the engine starts to stall. I see that the rev counter jumps down to "0" (despite that the engine is turning as it is still on the 4 or 5th gear) and up to the correct rpm. If I slow down, after 10-15 seconds the engine works OK. If I don't slow, after a few more seconds the engine stops for good for something like one minute.

When the engine stalls I see the "check engine" and "immobilizer" light to flash.
I think that (check engine) flashes due to HC emission when the engine turns without ignition.

There are no problems of this type when I accelerate up to max rpm if it doesn't take too long time. Also nothing like that when I go slowly.

I suspect 'overheating" problems with ignition system elements or the computer. I see that at very low temperature the "stalling speed" is higher.

I would appreciate to get some hints from more experienced Jimny owners.

Best regards,

Jurek

squid · 02-27-2009, 04:35 AM

at first I was thinking fuel pressure . at higher speeds it require more fuel and either a restrickted filter or weak pump could cause stalling but after I re-read the part about the tach going to zero. I think you should look closely at the distrubitor.. I think that is where ecm and dash tach get the rpm signal
let us know what you finally do to fix it
Squid

Rhinoman · 02-28-2009, 01:37 PM

Sounds like a bad camshaft position sensor, they are a known weak point on Jimnys. There is no distributor.

squid · 02-28-2009, 11:28 PM

I am in the USA, they don't have the jimny here I just asumed they were like the samurai but the jimny seems to be more sophicated. does the ecm store fault codes? a bad cam or crank sensor should set a code.

Ziemniak · 03-01-2009, 05:03 AM

Hi,

Yes, I will go to the workshop next week to read the codes. In my opinion this must be related to the temperature of certain electronic element of the ignition/engine control system.

Regards,
Jurek

squid · 03-02-2009, 03:04 PM

unsure about overseas vehicles but All vehicles made for the USA market have a universal diagnostic connector called orb2. We can buy very inexpencive scantool which can read the codes in ECM and clear the code after the problem is fixed. most fault codes are easy to fix and don't require going to the dealer. don't be afraid try!

Ziemniak · 03-08-2009, 06:09 PM

It looks like the problem is related to the crank sensor. I will replace it tomorrow and we will see. No error codes but diagnoscope shows no ignition impulses when things happen.

Jurek

Rhinoman · 03-09-2009, 02:30 PM

I think Japanese built models have a Crankshaft Position Sensor as well as the Camshaft Position Sensor. I would expect the ECU to default to batch firing using the Cam Sensor if there was no output from the Crank Sensor.
Spanish built models with the G13BB engine only have a Cam Position Sensor

Ziemniak · 03-09-2009, 02:38 PM

Well, definitely there was no signal in ECU of any type when problems started. Diagnoskope has shown no ignition pulses at all. Tomorrow I will probably see if right sensor was blamed.

I will let you know.

Best regards,

Jurek

vu_niitvn · 03-15-2009, 01:32 PM

I think you should look closely at the distrubitor.. I think that is where ecm and dash tach get the rpm signal