lee1rbc
Registered User
I have been doing alot of reading and just tuning my car. Did the vacuum check with air compresser and a bottle of soapy water (gain 1 1/2 psi). Installed a new MAF, new plug wires, and a couple other things
Anyway, the previous owner told me He had just installed new Bosch plugs so I didn't think anything of it. But after maf and plug wires I took it out on the highway to see what she had What she had was a miss!
The best way I can describe it is putting the pedal to the floor in 3rd at 2,500rpms to 3,500rpms it goes "vrummmmmup mmmmmmmup up mmmmup mmmup upmmm."
Then after a good Florida rain last week the miss was getting worse. I have thought maybe crank,cam sensor, DIS coils etc. But then I saw a post about Bosch 4 plugs and remembered thats what I have. So I bought a set of Autolight double P. And she runs without a hitch
Thanks guys for all Your info. My personnal guess why the Bosch platinum 4s dont work might be because of Fords wasted spark ignition system.
Basically 3 of the plugs are going to get a -spark thru the side electrode while the other three will get a + spark thru the center electrode. The plugs with the - spark will be weak because there is 4 side electrodes. Causing those plugs misfire, just a thought.
Anyway, the previous owner told me He had just installed new Bosch plugs so I didn't think anything of it. But after maf and plug wires I took it out on the highway to see what she had What she had was a miss!
The best way I can describe it is putting the pedal to the floor in 3rd at 2,500rpms to 3,500rpms it goes "vrummmmmup mmmmmmmup up mmmmup mmmup upmmm."
Then after a good Florida rain last week the miss was getting worse. I have thought maybe crank,cam sensor, DIS coils etc. But then I saw a post about Bosch 4 plugs and remembered thats what I have. So I bought a set of Autolight double P. And she runs without a hitch
Thanks guys for all Your info. My personnal guess why the Bosch platinum 4s dont work might be because of Fords wasted spark ignition system.
Basically 3 of the plugs are going to get a -spark thru the side electrode while the other three will get a + spark thru the center electrode. The plugs with the - spark will be weak because there is 4 side electrodes. Causing those plugs misfire, just a thought.