New Engine Install issue

[HorneDogg]

Hi All,

I just recently installed a new engine in my marauder. I have ran into an issue and wanted to see if anyone else has experienced a similar issue and what they did to correct it.

the issue is that the car seems to be running in some kind of limp mode. the Drivers side is running super lean and the passenger side is running super rich. The car is supercharged and was tuned by Reinhardt. any help would be greatly appreciated.

Thanks,

Jamie

[Zack]

Is the O2 sensor plugged in?

[HorneDogg]

yeah the O2 sensor is plugged in and I actually bought a new one because one was bad.

[Curless]

Do you have a scan tool to be able to watch the 02's? SES light on?

[HorneDogg]

its actually at the performance shop to be dyno'd and they are having the issue. they are not familiar with Marauders and haven't had this issue before.

I would think that they have the scan tool onsite in their garage

[Mackdombles]

Not familiar with Marauders? Its essentially a mustang powertrain. A performance shop with a dyno that cant read codes or diag running issues sounds sketch to me.

Was it a new engine and has it run ok since the install at all?

[RubberCtyRauder]

where did you get the motor? is it new, reman, used

Reinshart...say no more

[Curless]

its actually at the performance shop to be dyno'd and they are having the issue. they are not familiar with Marauders and haven't had this issue before.

I would think that they have the scan tool onsite in their garage

Umm, if they are not familiar with Marauders aka Mustangs get it out of there. It's boosted, if they screw up your engine goes boom. Has nothing to do with what type of car it is, a lean condition can be diagnosed by any competent technician. They should already know exactly what to look for.

[Mackdombles]

Umm, if they are not familiar with Marauders aka Mustangs get it out of there. It's boosted, if they screw up your engine goes boom. Has nothing to do with what type of car it is, a lean condition can be diagnosed by any competent technician. They should already know exactly what to look for.

Im with him.

[HorneDogg]

its a MMR 1000SE short block, yes I understand that they should be able to find out what is going on.

the tune was originally a Reinshart tune as you say. I only have 30k on the body and the original engine went to crap. these guys know whats up with engines, I am just not sure of their troubleshooting skills, and I wasn't sure if it could be in the wiring somewhere.

[Joe Walsh]

its a MMR 1000SE short block, yes I understand that they should be able to find out what is going on.

The tune was originally a Reinshart tune as you say. I only have 30k .... and the original engine went to crap.

Nothing surprising there!

Sorry for the thread Hi-jack....hope that they figure out WTF is going on.

[RubberCtyRauder]

since the stuff is new, them being a mustang tuner, as mentioned, they need to look harder at "their" install work. better find out what they warranty.

[Turbov6Bryan]

Ask for a simple compression check on all 8 cylinders

My guess is they don't have that "unfamiliar" marauder motor timed correctly and a compression test will prove the valves are smashed because they didn't get the timing chains on correctly

[HorneDogg]

yeah the engine is under warranty and they are taking all the precautions, engine assembly is not the issue here, it is literally doing the exact same thing it was before the new engine. it has to be something electronic somewhere and I was just hoping that someone might have had some type of similar issue. I cant be the only person that has had this issue.

[RubberCtyRauder]

mmr wont warranty it if the mustang shop trashes it. better find out what mustang shop will warranty. did you swap heads? who's heads are on it.