Hello,

I bought an 88 760 turbo from a neighbor for cheap 6 months ago.
When i got it the main problem is that it was not starting and would start with starting fliud then run sometimes smoothly and sometimes erratically.
So, i decided to take a look at the tank pump and the strainer was all deteriorated. I replaced the tank pump. the main pump is working fine but i put a new fuel filter on as well. Still it wasnt starting and running well. But plenty of fuel delivery. Pumps are both running strong.

Yesterday i replaced the fuel pressure regulator and problem still persisted. FI relay is clicking fine when turning key. after replacing fuel pressure regulator i was messing around with the air filter and it appears to be brand new. I then inspected the Mass Air Flow sensor, diconnected it and it appeared to be clean. I discovered It could start with the hose disconnected and the MAF sensor disconnected. It would'nt run smoothly though and would cut out. Then I reconnected the MAF sensor and I felt the connection may have been loose previously. The car is now starting and running great!

Does a faulty MAF sensor or faulty connection to it really cause the 760's to not Start or run well? Apparently so, but has any one else encountered this problem/ is this a common no start problem for these cars?

Any info would be handy.

Thanks,
Josh

 

The reason no one has helped is you posted this in new members. Technical questions should be posted under your cars sub-topic.