740i won't start, no power at fuel pump
I've changed all 3 relays in the e-box (fuel pump relay, main relay and oxygen sensor relay. I didn't know which is which so i've changed all 3).
Next step: I've measured resistance and ac voltage of the crankshaft position sensor, and these seems fine: 505ohm and 4.1volt ac (measured on pin1&2 from the plug coming from the sensor).
The resistance is within specs (specs is 540ohm +/- 10%), but i don't know if 4.1v ac is a good value?
Next step, the camshaft position sensor. This one gives no/hardly current? I measure 0-0.2v ac. (resistance is within specs, 1280ohm). Is this sensor dead? Could this sensor be responsible for a dead fuel pump? I've read that only the crankshaft sensor can, not the camshaft sensor.
Any opinions on this? Thanx in advance.
Edit: Now that i think about it twice it seems normal to me that the camshaft sensor delivers hardly any voltage during cranking of the engine because the camshaft turns relatively slow.
So if all relays and sensors are o.k., my thoughts go to the computer module, which is expensive to replace...
Can't Find a dependable Mechanic in Pittsburgh, PA
... E32 (740i) which is not getting power to the fuel pump & I've just gotten word from the second mechanic ... someone to replace the fuel pump, which didn't have any effect on the car starting/running. ... & that I needed 3 new coils. After replacing them, the car starts for 15 minutes & cuts off. Yesterday ...
No start... Power to one pump only, solved
... the car starting on one bank the first few seconds and then the other one fires up. Anybody knows about what signal the Motronic 1.7 needs to ground the fuel pump pin? ... (occur with minimal sparks with very low power, normally in connectors to airbags. Then it normally helps just to disconnect and ...
Can anybody tell me where the Fuel pump relay is on a E32?
... me where the Fuel pump relay is located on a 88` E32 735i ? And color? My brother has problems with starting the car. He changed the fuelfilter. The startermotor and battery seems OK. Immediatly after the filter was changed the car did start and he drove a few miles. But now it`s ...
Help! Dead e32 740i.
... the 2 Volt drop keep the fuel pump from working? Where is the fuel pump relay?? Bentley shows it in the Ebox, but I don't have ANY relays in there! I tried starting in Park and in Neutral so shifter location isn't the issue. I couldn't get ...
1991 735i crank position sensor???
... would drive fine but the next day when i attempted to start the vehicle I would have the same issues.Well,today i ... vehicle approximately 1.5 miles and it quit running.Got the vehicle started again ,drove approximately .75 mile and ... ".No spark,Checked for power at fuel pump-none-no fuel at fuel rail.I ...
E32 7 series series buying guide
... real quick. 750's are heavier and more powerful and therefore harder on the suspension. Look for uneven ... cost you more than the purchase price of the car. Fuel pumps.. (Yes Virginia, there are two) should be replaced ... Manual: BMW 7 Series (E32) Service Manual: 1988-1994 735i, 735iL, 740i, 740iL, ...
Starting a flooded bmw e32 with m60 engine
STARTING A FLOODED BMW E31, E32 OR E38 WITH M60 ENGINE ... 1996 E38 730i's and 740i's can suffer from flooding under certain conditions. The usual cause is starting a cold car ... no chance of getting the engine going in this condition. Unplugging the Fuel-Pump-Relay does not help as there is a lot of ...
BMW approved transmission fluids
... transmissions are designed so that oil additives are not necessary. BMW disapproves the use of any oiladditives and cannot accept ... 807. See S.I. Bulletin B 24 01 98. E32 740i/iL from 1993 through 1994 production ... M-1375.4, BMW Part No. 83 22 0 142 516. GA6HP26ZTU E70 X5 4.8i from start ...
E32 ECU/DME hacking.
... 155kW/211PS (M30/ 346KB/EC) BMW 7' E32 735iL 3.4 155kW/ ... Motronic ) says: Quote: The Motronic 1.1 System was used by BMW from 1987. This was then superseded in 1988 by the Motronic ... to close and 30 is connected to 87 starting the fuel pump. (30+87 can be bridged manually ...
SALE Brand New original BMW E32 rear rotors & pads
These are new in the box original BMW Teile for the 1988-1995 e32 740/750 - rear rotors & pads. These can also be an upgrade (as they are thicker) for the 730/735 if you get the matching calipers & carriers. Part #'s = Rotors - 34211162967 Pads - 34211162536 ...
NOS Front Caliper Drivers - ATE $100
... , Rebuilt Front Left E34 1994 V8 4.0 FI N M60 Front Caliper, Rebuilt ... Front Caliper, Rebuilt Front Left E32 1988 L6 3.5 FI N M30 Front Caliper, ... Front Caliper, Rebuilt Front Left E32 BMW 735IL 1992 ... , Rebuilt Front Left E32 BMW 740I 1995 V8 4.0 FI N M60 ...
I have an E32 Hooptie in Pittsburgh PA: HELP!
I recently moved to Pittsburgh PA with my project car (1993 E32 740i). I bought it with front end damage for cheap, but now I'm starting to get frustrated because I can't find anyone who know about these cars that doesn't charge $100/hr to tell me about ...
New Member With A No-Start Condition
... 944 for a 1993 BMW 740i with a no-start condition. I replaced the fuel pump and fuel pump ... car has 163,000 miles on it, and it cranks, but it does not start. I sprayed some starting fluid into the air intake, and it tried to start, so therefore I thought that it was fuel related. I am open to any ...
Bosch Motronic 1.1/1.3 BMW
... aid to fault diagnosis. Motronic 1.1 1987 to 1988: The ECU will store a maximum of 5 ... the fuel pressure lines, and provides for an easier start. The fuel pump relay circuit will then ... conditions of speed and load. Fuel pressure system From build date 3/1988 the BMW vehicles in the Motronic 1.3 range ...
New 93 740i...where to begin
... just got a heck of a deal on a black on black 740i. im rather familiar with the straight 6 BMW, but the V8 is a whole new beast. anyway the guy ... brand new battery, but can't even get it to turn over, not a click. i hear the fuel pump kick on, and its like everything is ready to go, but ...
Need to reprogram key on 740i
... been looking online for assistance. I just purchased my 2nd BMW. This one is a 94 e32 740i and has been sitting for over 6 months. The guy I purchased ... car and the key lost its programing. How do I reset the key? I called BMW and they said to just do a search online or to make an appointment to have ...
car randomly dies and wont sart back up...
... work. so i go down there and check it out nothings leaking or out of the ordinary, so i try to start it and it gives a little sputter idles like sh!t for about 5 seconds and dies.... ... ebay.com/ebaymotors/BMW-E32-740i-740il-92-93-94-95-Fuel-Pump-0- ... ries http://cgi.ebay.com/ebaymotors/BMW-NEW-Bosch- ...
Anyone on Bimmerforums from Pittsburgh, PA?
I just moved to Pittsburgh, PA & I am looking for others who DIY work on their BMW. I have a 1993 E36 325i & a 93 E32 740i. Please let me know if you're nearby. Thanks in Advance, Murphy aka Bimmer Freshman
E32 740i emissions problem, fixes?
Hi, I'm buying a -93 740i which has failed it's emissions test. The seller told me the fault codes had indicated that one oxygen sensor and the idle valve had errors and the exhaust pipe is confirmed to be (seriously) leaking from between the middle and the back box. So are these emission readings ...
Burning oil or coolant?
There is excessive smoke coming from the tailpipe of my e32 740i, not only on start-up. The outside temperature seems to have nothing to do with it. I believe it to be either oil or coolant being burnt up, as it is losing both. Symptoms: Very thick smoke out of tailpipe about 85% of the time the ...
Electrical fault, please help
... own a BMW 750i 1993 E32, this car has been standing for some time and I ... , oil filter, coolent, new fuel, charged the battery and then turned the key. IT STARTED !! cool ... ) the positive terminal. Anyway the whole thing went according to the procedure until i tried to start the car. I turn the key to ...
Some people lose...but I WIN...
... document my latest projekt...a 1993 740i I will start with the back story, as it is a fun ... . The BMW recovery crew then arrived on the scene and with the assitance of a little more power ... (the one in the car was still under warranty) a new starter and fuel pump. special thanks to everyone that threw ...
Just wondering if anybody knows this car. (740i)
There is a beige e32 740i running around town (Laramie, Wyoming) and I've seen the car 3 times in the past 4 days. It's got local plates. Staggered wheels (at least 245's in the rear). Looks like it's been lowered. It's in pretty decent shape. EDIT: and the rear roundel is completely faded off.