rev limit

[1995rivierguy]

my 95 riv only rev up to 3500 rpm but the tach redlines over 5000 rpm is this normal ?

[maxwedge]

If this is neutral, that is designed into the pcm to stop careless revving of the engine in neutral from damaging the engine.

[1995rivierguy]

the car wont go past 3500 in gear as well

i drove the car to san diego this week end from vegas it ran pretty good i'll say for as much work as i have put into it , one thing it did do while going up baker grade the car downshifted into 3rd and wouldnt go back into OD until i stoped and turned the car off and restarted it did the same thing coming back while pulling up Cajon pass anybody have any idea's,also i got about 18mpg with the air on and 23mpg with the air off does that sound right or should it have been better ? the car is really starting to grow on me im expecting a 2.5 pulley tomarrow cant wait to see how it will run after i install it anybody done this yet how do you like it does it have better exceleration
im also gonna gut the airbox and change the plugs i guess thats the thing to do according to the other posts i've read

have a friend with a 97 and that m90 is no sloutch and its stock my car does'nt move anything like it and it has heavy ass 20'' wheels

[maxwedge]

What happens at 3500 rpms, just dies, flattens out, misfires?

[1995rivierguy]

The car just doest pull anymore I tried it once before and after it started running hot and idling irraticley felt like it was being held back

[maxwedge]

I would at minimum check fuel pressure under these conditions and see what you have, then on to maybe a partially blocked cat.

[1995rivierguy]

Originally Posted by maxwedge

I would at minimum check fuel pressure under these conditions and see what you have, then on to maybe a partially blocked cat.

checked fuel pressure today its low about 36psi if i disconnect vacum line it goes up to 40 psi so i changed the fuel filter it up to 45 with no vacum and 38 with vacum do u think my regulater is bad and what should it be anyway ?

[maxwedge]

41 to 47 psi.