Alright hello everyone
I have a 91 320i that I bought off of my dad a few months ago. The car originally ran after having its fuelpump replaced. Car sat outside the garage during the rainy season for a few days and when I tried to move the car It wouldn’t start. I immediately thought the ecu got wet cause the cowell on the windshield is cracked and from what I’ve read I know that it’s happened to a few people out there.
I then took out the ECU to check for water damage but can’t seem to find any. So I thought the ecu should be fine. Being the idiot and lazy mfcka that I am I decided to buy another fuelpump thinking that the old one might’ve been defective. Checked the fuel pump And saw that the sending unit looked really old and funky so I replaced the fuel pump/sending unit AGAIN and tried cranking the car and it finally started!!
I let the car warm up for a little while and started packing up all my tools and I shut off the car to wash my hands. Decided to take it for a test drive But wouldn’t turn over again. I checked for fuel and spark and nada so I replaced the CPS, checked all the relays, fuses and grounds and still nothing.
Any of you have an idea to wht it could be? I don’t think my car has EWS since it’s so early but I’m not very familiar with m50s.
Help appreciated 😔 just about had it with this thing
Welcome to the Forum!
Here we don't just throw parts at a car, we start with diagnosing it first.
No, your car doesn't have EWS, so put that aside.
1) Do you own a multi-meter?
2) If so, did you test the CPS - Crank position sensor?
3) What brand of CPS did you install?
There are more questions to ask, but lets start there 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
Hey Dworthy,
No I don’t have one but I can definitely get my hands on one. The cps I put on the car is an oem one off of my other running 320i
Thank you for taking the time to try and help me out. I really do appreciate it
I’m thinking wiring either got loose, broke or connectors got corroded somewhere but I just don’t know where to start looking
Bump
Okay, trust but verify as we say in the business.
So use a multi-meter to test Pin #1 & #3 on the CPS, should be 540 ohms +/- 10% for a good sensor. If you are not sure if the wiring is good, then pin it out from the DME. Google search this: bmw E-36 ETM That is the wiring diagrams for you car, and will help you out.
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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