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Old 02-20-2016, 04:42 PM   #1
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Default After turbo install car stumbles and dies at idle

So I installed my turbo last weekend and I just can't figure out whats going on. Its starts and idles fine, but when I rev it and it comes back down it shows low vacuum and stumbles till it dies and its also pegging the wideband full rich.

Its a 99 with the new CX manifold/turbo/downpipe. I am running an AEM fic with RX8 420cc injectors and AEM wideband.

Any ideas? This is killing me.

Last edited by estephens13; 02-20-2016 at 04:56 PM.
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Old 02-22-2016, 08:21 AM   #2
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Sounds like you do not have one or more of the following :

1. A way to meter air flow
2. A map sensor hooked up
2.5 An IAT sensor
2.9 a wideband O2 sending a good signal
3. A tune that is capable of running the engine

Need more info bro.
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Old 02-22-2016, 01:00 PM   #3
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Quote:
Originally Posted by ryansmoneypit View Post
Sounds like you do not have one or more of the following :

1. A way to meter air flow
2. A map sensor hooked up
2.5 An IAT sensor
2.9 a wideband O2 sending a good signal
3. A tune that is capable of running the engine

Need more info bro.
1. stock maf
2. map from the FIC is connected and working
2.5 stock IAT sensor
2.9 wideband is good
3. I was running this tune with these injectors prior to the install


I think I'v figured it out, I have the maf connected directly to the turbo (due to ordering the wrong coupler). I have read about a bunch of people having the same issue from the maf being too close to the turbo inlet. I ordered the correct couplers to move it where I wanted it anyway.
Also..interesting numbering system lol
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