Hi everyone!
This is my first post.
I'm Mick, a Portuguese guy living in England!
I got a 1997 E36 323i, 2.5, 6 cylinders M52, and when its hot, if I'm running, the RPM goes down for half a sec, and if the same happens when I'm stopped, it'll turn off... After this, most of the times (not always), it appears to work only with 5 cylinders I guess (have characteristics of a flooded carburettor)... It's not working good, but only after this... All this start after some time in heavy traffic... Till then its working perfectly!
I changed the spark plugs, it's a bit better but it still doing the same sometimes (less frequent I guess). I'm now trying to check the coils (and I'm waiting for one in the mail), but it's difficult because its not happening all the time, and I have to check it only if it's doing it! I'm checking the coils by unplugging one by one to see if I can hear any sound change... Till now it always change, like it should, but I'm convinced that it must be one of the coils anyway... Am I wrong? Works fine when cold, so I think the option to check it with the multimeter is not an option??? Or can I check it anyway? But when cold its working really great! If I should check it cold with the multimeter, which pins should I check?
Also, I think the coolant was low, so I added some (probably a bit too much... I hope it will flush it out!???), because it can also be some air in the cooling system????? I squeezed it and tried to take out the air... Haven't see any coming out, so I guess its ok...
The best description I read was this:
"Symptoms of a Faulty Ignition Coil
One of the most common symptoms of a faulty ignition coil is when the vehicle runs for a while and then the car's engine suddenly dies for no apparent reason. This occurs after the ignition coil or module gets too hot, and usually will correct itself after the engine module cools. In some cases, a bad ignition coil will result in the vehicle not starting it all. Or, it may have characteristics of a flooded carburettor, where the vehicle runs very poorly or jerks and stops erratically."
I would inspect your rubber bits under the hood. At that age, there is a very good possibility that you have a vacuum leak on the motor and it can cause this too.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Totally agree! I'm just waiting for the OBD scanner and hope that can show any faults... Anyway, the ones I can see are not in bad shape... Maybe the others are faulty... Hopefully the scanner will tell me something about it... Well, hopefully NOT hehe
On the other hand, I changed the spark plugs last week and one of them was loose! Maybe it overcharged the ignition coil, that's why I already bought one (used). I hope this is the problem...
Thanks dworthy
That hand held scanner will tell you about 10% of the info that is useable. If you see an P0171, lean code, then you do have a vacuum leak.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Yup... That's not as powerful as the professional ones... I'm aware...
How about the coil? To my knowledge it makes sense... What do you think? It can be the coil? Its only doing it sometimes, and always when hot... My bike had bad coil and it was doing the same thing... Looks like a flooded carburettor...
Thanks
You can test each coil, all you need is a basic hand tool set, and a digital multi-meter that has Ohms. The test procedure is to test between the two outer prongs on the connector of the coil and it should be .4 to .8 ohms.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Yup. The problem is, IF it is the coil, its only malfunction when is hot... If it's cold, is OK, I think, so it maybe don't show any anomalies... So, when is cold maybe it shows the correct values, no? Or it will show weird values anyway?
Anyway, when the coil arrives, I'll put it where the spark plug was loose and see what happens, if it's still doing it, I change to other cylinder until I find the one........ Or not
It wasn't the coil, or the MAF... I'm trying the O2 sensors...
I'm testing them with a voltimeter and it reads 1.8/1.9V (oscillating) on the front one, and around 5.8/6V (oscillating as well) on the back... The back one is wrong, isn't it?
Thanks
If they are original, which is suspect, then they are over-due for replacement. The signal should be less then 1.0 volts to show proper operations. However if you are getting a rich and it is that high, then I would suspect something else. You will need to be able to see the live data to put it all together.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
A clogged cat you would feel all the time. But start with the preventative maintenance stuff first.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
My mechanic says the crankshaft sensor is gone bad... I read about it and people say that the car wont start or will be difficult to start... My car starts first time all the time, cold or hot... I'm really stuck here.
It runs fine for 20/30/40 minutes and after that the revs go down and up in half second, after that it looks like a flooded carburettor..... If I'm stopped when the revs go down and up, the car dies, but it starts right after that no problem, but it'll look like a flooded carburettor anyway...
Crankshaft sensor???
Fuel filter???
Oil change???
Battery??? When I bought the car, found a very small battery inside... No way is the 72ah that should be... So I had a larger one at home, not the 72ah, but 60ah... Not enough? Makes no sense to me, but.............................
I would go with what the mechanic has told you, start there first. A crank position sensor is a common fail point on the M5X motors, and at 15 plus years of service, the electronics can break down.
You have the correct software, but not the correct connector, get the ADS round connector.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
The connector I have is a R-232 to the OBD-II connector, then I have an OBD-II to the ADS connector. So short answers is yes!
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Yes, the EWS is BMW's version of anti-theft. You should get something from the ABS/ASC, and I am willing to bet that the EWS was the root of the problem all along, for this can also cause longer cranking too.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
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