87 tona, wont rev past 4500, now is dead.

[TurboDoctah]

Ok, i had a problem before that i just fix... i had to replace the HEP... Welll it fired right up as i was hopeing. but it wouldnt rev past 4500!!.. and now it stalled and wont start up again what gives??? did the hep i just put in died after 5 mins of running??? what could it be? could the coil be bad??? im getting pissed i just got this car off someone on this forum... i Cant have a non running car in my driveway the city will impound it... i need this fixed and im stumped.. anyone else have a problem like this? and what did you do to fix it?? im starting to think i spent 2500 for nothing..

-Bob.

[tryingbe]

Engine Timing And Belt Replacement MiniMopar Resources

[TurboDoctah]

i adjusted the timeing meny times... timeing shouldnt be a problem... now Cam timeing mite be since it does have adjustable cam gear but i wont touch that... timeing shouldnt kill the car. theres gotta be something else wrong. bad tps? bad ground? too much crack smoked??... ok i just took a vid of it. it did start up again thank god dunno why it died. im guessing the coils bad imma swap that out... but i made a video of what its doing... ill post it asap

[tryingbe]

Check the fuel pressure.

[TurboDoctah]

iv leaned it out all the way and cranked it up no change at all... YouTube - 87 dodge daytona shelby z, wont rev past 4500 ok the embed vid didnt work but theres the link.

[tryingbe]

What's the fuel pressure number?

[TurboDoctah]

right now i have it between 35-40 psi with the vac line on. i have +40 injectors btw and a 255lph in the tank.

[tryingbe]

Does the pressure stay constance and doesn't drop?

[TurboDoctah]

when i rev it it goes up. raiseing rate afpr. at idle it stays constant.

[tryingbe]

No code?

[TurboDoctah]

i havent checked yet... key on off on off on? ok it apears to be 12 then 55

Code 12 - Battery feed to computer

When monitored
- Ignition on
When placed in memory - If battery disconnected in last 30-100 engine starts.
... so i had the battery out. so no codes

[TurboDoctah]

ok i replaced the coil with a msd blaster from a mustang.. Same thing wont rev past 4500.. but on a good note it revs smoother and quicker lol... gonna check the plugs in the morning and see if thats where the problem lies. im crossing my fingers...

[tryingbe]

So, now it starts but won't rev in neutral past 4500rpm?

[TurboDoctah]

Quote:

Originally Posted by tryingbe So, now it starts but won't rev in neutral past 4500rpm?

Yeah it wouldnt start with the old HEP so i replaced it and it fired right up.. but same thing as b4 it died it wont rev past 4500. i dunno what else i can replace besides the spark plugs... would a bad o2 cause this?

[tryingbe]

What about driving in gear?