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Asking this on behalf of a friend and fellow user of another forum.

Recently completed RB20 Swap... just a straight swap as he blew his other one, DET Auto exactly the same engine as before and all runnign components just used a different block n head basically.

Car will crank over happily but will not fire, plenty of fuel, plenty of spark. List of things tried so far:

Replaced Ignitor

Replaced CAS

Replaced Injectors

Replaced & Checked Coils and Plugs

Replaced Loom & Injector Loom

Checked Compression

Replaced every fuse and every relay

ECU says Nil Errors (Code 55)

Replaced Inlet Manifold Gasket and Throttle Body

Checked Timing (spot on)

The thing has no intercooler pipes on it, meaning no AFM, so dont expect it to idle but it wont even fire or try to fire, just free spins. Plenty of fuel getting to the engine so its not the fuel pump either.

TPS or 02 Sensor? But I thought it would at least fire even if they were borked. Im stumped, advised him to go get a proper diag on it as im out of ideas but thought you guys may be able to point out something we have missed.

Cheers,

James.

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It's got way too much air. It won't fire. The car also won't fire up as you're only running the TPS sensor and Map sensor. It'll be wanting the AFM meter as that is it's main information source.

Hook the pipes up, and then give it a kick in the guys!

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https://www.sau.com.au/forums/topic/138714-rb20-wont-start/#findComment-2583856
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It's got way too much air. It won't fire. The car also won't fire up as you're only running the TPS sensor and Map sensor. It'll be wanting the AFM meter as that is it's main information source.

Hook the pipes up, and then give it a kick in the guys!

If the AFM isn't connected then the car will start in limp home mode. It works completely fine til about 2500rpm, where it hits a rev limiter.

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https://www.sau.com.au/forums/topic/138714-rb20-wont-start/#findComment-2594877
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