- Joined
- Sep 17, 2017
- Messages
- 24
How’s it going guys, I rarely post on here mostly I just lurk around and see the for sale posts but I have done just about everything in regards to this swap and I still have no solution. Let me get right into it.
I recently swapped a 99 cobra engine into my 01 Roush. I COMPLETELY redid the block from top to bottom. Everything is new on the damn block. the major parts on the car are
Stage 1 cams
Bbk Tb
jlt ram air
Lightning maf
Completely redone heads
Mac Longtubes and prochamber
So here’s my problem,
The car will start but will die shortly afterwards. IF I hold the gas at startup and keep it around 1500rpm for about a minute the car will then hold on it’s own. If I drive the car sometimes it will die when coming to a stop and pushing in the clutch. It also breaks up on throttle when driving. I have a feeling that I’m 99% sure it’s tune related. Keep in mind 99% of the the parts on the swap are brand new so I doubt they’ll be faulty as well as I did Some things to make sure it wasn’t anything else
TPS sensor was fine
Brand new iac
Brand new maf
Brand new hoses
New fuel pump
NO vacuum leak
No blown fuses
Is there anything I’m missing to check or what would your guys’ opinions be? As mentioned I’m fairly certain it’s the tune but even then I put a tune that my brothers Mach 1 had that’s has the SAME mods my roush has except for the cams but it still has that problem. So I’m not sure if it can be anything else but the tune. I have the appt for the tune coming up soon but I wanted to see if there was anything else I should try before taking it to the dyno and what not. Any and all help will be appreciated thanks!
I recently swapped a 99 cobra engine into my 01 Roush. I COMPLETELY redid the block from top to bottom. Everything is new on the damn block. the major parts on the car are
Stage 1 cams
Bbk Tb
jlt ram air
Lightning maf
Completely redone heads
Mac Longtubes and prochamber
So here’s my problem,
The car will start but will die shortly afterwards. IF I hold the gas at startup and keep it around 1500rpm for about a minute the car will then hold on it’s own. If I drive the car sometimes it will die when coming to a stop and pushing in the clutch. It also breaks up on throttle when driving. I have a feeling that I’m 99% sure it’s tune related. Keep in mind 99% of the the parts on the swap are brand new so I doubt they’ll be faulty as well as I did Some things to make sure it wasn’t anything else
TPS sensor was fine
Brand new iac
Brand new maf
Brand new hoses
New fuel pump
NO vacuum leak
No blown fuses
Is there anything I’m missing to check or what would your guys’ opinions be? As mentioned I’m fairly certain it’s the tune but even then I put a tune that my brothers Mach 1 had that’s has the SAME mods my roush has except for the cams but it still has that problem. So I’m not sure if it can be anything else but the tune. I have the appt for the tune coming up soon but I wanted to see if there was anything else I should try before taking it to the dyno and what not. Any and all help will be appreciated thanks!