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Registered User
Join Date: Mar 2012
Posts: 2
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1986 bmw 325e
I have a 1986 325E. I replaced the fuel pumps and I am now having problems with power to the injectors. Check the injector temp switch at the thermostat housing and it is good. Checked for voltage at injectors, No voltage. I will attempt the relay. Looks like there is three under a cover as I follow the injector wires. Is there a way to check the relay without taking it apart and which one of the three under the cover is the fuel injector relay. When I installed the fuel pumps did I fail to connect a vital wire? All two fuel pumps are working. My Reference Sensor crumbled before my eyes could this cause my injectors to not get power?
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03-19-2012, 08:02 PM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Quote:
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03-20-2012, 07:47 AM
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Registered User
Join Date: Mar 2012
Posts: 2
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Thank you, It's part of that package. There is a speed sensor and there is a reference sensor. they are connected up to the Trany bell housing. I thought It may be the problem but I didn't think it would cut the power to the fuel injectors. I did look at a diagram and the wires (fuel injectors ) goes to the computer so I' am guessing your right. I will purchase a new one and see what happens. I am sure it must be it since the vehicle started prior to the fuel pump changing. This is when the sensor crumbled.
Thank for the help. I may be back. |
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03-22-2012, 03:23 PM
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Registered
Join Date: Oct 2005
Location: Florida
Posts: 668
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It sounds like you are refering to the crank position sensor( Sometimes refered to as the pulse sensor on older models). If so, the fuel pump will only run for a second or two when you turn the key on, then it will not come back on if the ECM does not get a signal from the crank sensor that the engine is turning.
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74 911 targa blk on blk, Carrera fend., tires & whls. gone, missed 85 325e bought new, totaled after 20 years & 465K miles, trouble free service. 01 Ford Ranger 4dr stpsd 4wd. I drive,here 88 325i convert. only 98k miles,gone, sold 93 325i.here, 98 Z-3 roadster. gone, 08 128 cabro gone |
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03-22-2012, 07:40 PM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Yep, it needs that sensor for the engine to run.
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03-23-2012, 07:11 AM
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