The problem with glow plugs

Hello all, my stilo 1.9 MJT 120CV, for about a year, presents problems to the glow plugs preheating, in practice, the continental time ? the problem was have replaced all the glow plugs, but after about 2 days and rispuntata the light, I have to say that in the summer I have no problems but in the winter kind of morning ? hard starting, cos? we have intervened more? deeply and we checked the fuse:OK, the rel?:OK, at the same time? cable:OK;
at this point I would like to understand:

1) With multiecuscan diagnosis I can see what? the problem? I each time I delete the errors, but this promptly returns.

2) If I would check the voltage at the ends of the spark plugs, this is how it must be?

3) Where can I find a diagram with the specifications and the voltages of the various pins of the control unit preheating?

If you want my advice you should contact a car electrician in your area at least to make a diagnosis of pi? in-depth

Clear,
prover? in the week....Thanks

I backgroop for the connectors of the spark plugs, which could be the cause.

Hello to me ? happened the same problem. Replaced the glow plugs (new Bosch), replaced the ecu, plugs (new Fiat) but the problem persisted. In the end I replaced the sensor on the filter mount, diesel, what? the sensor is circular in shape where you screw the filter.
NB with the diagnosis I reported nothing.

Hello,
just yesterday I carried out the verification of the glow plugs, with the substitution of 1 failed.
With the tester I found three to 1.2 ohms and a marked 41ohm, outlet and powered with battery, no sign of life.
Replaced and all ok.

x gcmotor: circular sensor you are referring to, the one under the filter that checks for the presence of water in the oil?

Hello

Quote:

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Originally Written by gcmotor

Hello to me ? happened the same problem. Replaced the glow plugs (new Bosch), replaced the ecu, plugs (new Fiat) but the problem persisted. In the end I replaced the sensor on the filter mount, diesel, what? the sensor is circular in shape where you screw the filter.
NB with the diagnosis I reported nothing.

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Gcmotor you are referring to the heater with diesel mounted on the diesel filter between the filter and the support, but on the stilo 1.9 mjet not ? expected, such as setting up.. ? happened to me as well but on older engines, jtd.. the heater is controlled by the control unit pre-heating..

124alexs
I am glad that you help, and I'm glad that you learned a method to test the glow plugs without disassembly or with rudimentary ways..

if you want we can do a test, then we will disable the request ecu candles from the ecu to the engine. mail file ori.

Thanks Backgroop,
? a practice that use to be a p? I also, I can confirm that you gave a valuable advice, I intervened only in order to strengthen your thesis, and why? gi? the topic was very limited.

Excellent collaboration!