Leaky oil pressure switch

For anyone with a 95 ,or I'm assuming series2 also,if you are running the original OPS,and are experiencing rough running issues,and have exhausted(your wallet too)all avenues,consider examining the OPS wiring where it connect to the switch.If your OPS is weepy,the leaking oil will migrate up and into the wiring loom and basically send nasty messages to the computer.It will also shut off the fuel pump intermittently.the fuel pump is connected to the OPS,and when the engine oil pressure drops,the fuel pump will shut off.saving the engine. after finding the leak,put a new OPS and strip back the wires and thoroughly clean with elec cleaner,and heat shrink all wires back together,individually,and put the plastic loom back on.this should at least solve most of the running issues. If the wires are wet,your car will run rough! this can eventually lead to fuel pump failure.

robotennis61 wrote:

For anyone with a 95 ,or I'm assuming series2 also,if you are running the original OPS,and are experiencing rough running issues,and have exhausted(your wallet too)all avenues,consider examining the OPS wiring where it connect to the switch.If your OPS is weepy,the leaking oil will migrate up and into the wiring loom and basically send nasty messages to the computer.It will also shut off the fuel pump intermittently.the fuel pump is connected to the OPS,and when the engine oil pressure drops,the fuel pump will shut off.saving the engine. after finding the leak,put a new OPS and strip back the wires and thoroughly clean with elec cleaner,and heat shrink all wires back together,individually,and put the plastic loom back on.this should at least solve most of the running issues. If the wires are wet,your car will run rough! this can eventually lead to fuel pump failure.

I s'pose this is one reason not to let the oil pan gasket drip...

albertj wrote:

robotennis61 wrote:

For anyone with a 95 ,or I'm assuming series2 also,if you are running the original OPS,and are experiencing rough running issues,and have exhausted(your wallet too)all avenues,consider examining the OPS wiring where it connect to the switch.If your OPS is weepy,the leaking oil will migrate up and into the wiring loom and basically send nasty messages to the computer.It will also shut off the fuel pump intermittently.the fuel pump is connected to the OPS,and when the engine oil pressure drops,the fuel pump will shut off.saving the engine. after finding the leak,put a new OPS and strip back the wires and thoroughly clean with elec cleaner,and heat shrink all wires back together,individually,and put the plastic loom back on.this should at least solve most of the running issues. If the wires are wet,your car will run rough! this can eventually lead to fuel pump failure.

I s'pose this is one reason not to let the oil pan gasket drip...

Oil pressure switch is above the oil pan, only oil that can get on it is from the rear valve cover or from itself like robo is talking about.

97 park ave wrote:

albertj wrote:

robotennis61 wrote:

For anyone with a 95 ,or I'm assuming series2 also,if you are running the original OPS,and are experiencing rough running issues,and have exhausted(your wallet too)all avenues,consider examining the OPS wiring where it connect to the switch.If your OPS is weepy,the leaking oil will migrate up and into the wiring loom and basically send nasty messages to the computer.It will also shut off the fuel pump intermittently.the fuel pump is connected to the OPS,and when the engine oil pressure drops,the fuel pump will shut off.saving the engine. after finding the leak,put a new OPS and strip back the wires and thoroughly clean with elec cleaner,and heat shrink all wires back together,individually,and put the plastic loom back on.this should at least solve most of the running issues. If the wires are wet,your car will run rough! this can eventually lead to fuel pump failure.

I s'pose this is one reason not to let the oil pan gasket drip...

Oil pressure switch is above the oil pan, only oil that can get on it is from the rear valve cover or from itself like robo is talking about.

my bad

Not necissarily, you still shouldnt let the oil pan drip because then you can see where most of the oil is really coming from. For instance i always thought my oil pan was leaking pretty bad until i finally changed my dead oil pressure switch that was also leaking oil, ever since its been fixed there hasnt been a drop of oil on my pan. Theres a very slight bit of oil still coming from the pan gasket, but no drips on the floor anymore, which tells me that the oil pressure switch was leaking quite a bit. Just a reminder to check "upstream" for oil leaks before having to mess with the oil pan because changing an oil pressure switch takes less than 10 minutes.