Stagea Running Crap When Hot

[37831999]

My stagea which I've owned for about 48 hours is doing my head in! Bought it and drove home ( 80miles ) half a mile away from my home the car misfired and cut out. Would only start when cold. I've changed the afm and it now starts all the time but when it warms up its smokes ( black ) no power, and when you put your foot down and the boost reaches 0psi the fuel cuts out completely until you release the throttle. Changed afm and O2 sensor. Still no luck. Don't wanna have to get rid if the car already but I can't keep throwing money at it and I haven't even driven it properly yet! Please help!

[Dan_J]

next time its hot and wont start unplug the ecu coolant sensor which is the 2 pin sensor bolted onto the front of the intake manifold if rb stagea. if it starts u found the problem so install a new one

Edited October 28, 2013 by Dan_J

[KiwiRS4T]

next time its hot and wont start unplug the ecu coolant sensor which is the 2 pin sensor bolted onto the front of the intake manifold if rb stagea. if it starts u found the problem so install a new one

^^^ Yep I had that problem once. If you disconnect the sensor the ecu has a default map that will keep you running til you get a new one.

You don't say where you are.

Don't keep throwing money at it - find a mechanic/workshop familiar with RBs and get them to have a look before you buy stuff on spec.

[37831999]

With the new afm the car starts all the time and runs, but runs really bad once warm. When the coolant temp switch unplugged the revs go up by about 5/600 but the misfire and smoke still occur :-(

[37831999]

Had a further look today and found the end cap on the intercooler had come apart!!! Bypassed the intercooler and happer well happier days. Still have major spluttering/misfiring at high boost 8+psi. Plugs being changed next

[Ben C34]

You running above 8psi with no intercooler? on 98? Surely it would be pinging like mad.

[scotty nm35]

Don't wanna have to get rid if the car already but I can't keep throwing money at it and I haven't even driven it properly yet! Please help!

This is why you diagnose an issue before buying parts.

An intake pressure test is the first thing I would have done...

[37831999]

Thanks for the useful bit of information Scotty. The symptoms to me didn't seen like it could be this, but am new to the rb engine. Next time I have a problem ill come straight to you.

[37831999]

Superben I ain't really running it, only been like 300metres in it since bypassing the intercooler. Just making sure it would run ok.

[Skepticism]

man don't take it to 8psi without an intercooler

[37831999]

Don't worry guys it's only like this till my front mount is delivered.