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Petros

Member Since 03 Jun 2011
Offline Last Active Jun 07 2014 02:35 AM
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Topics I've Started

Help! Dies At Low Rpm

07 August 2011 - 09:31 PM

Hi All,

New to this forum but not to first gen CRXs. We have a '86 CRX with 1.5L and 3 barrel carb, all bone stock. I had recently replaced the long block with a rebuilt one, due to it being badly overheated. I swapped all the same external parts and accessories onto the new engine and got it running. I had to fix a few vacuum leaks I discovered in the lines.

Now it starts cold and runs great, it can be driven a few blocks, but when it warms up it cuts out and dies at low RPM. After it reaches operating temperature it refuses to stay running. Acts like it has no fuel because I can get it to run briefly if I spray starting fluid down the carb. I see no visible problems.

The auto choke starts out closed and slowly opens as it warms. It does not appear to open all the way, so I wired it open to see if that made any difference. It just ran crappy, so I took the wire off. I think this was how the choke worked before I swaped the long block, and I do not think that having it open 3/4 of the way will prevent it from running (or will it?).

Does anyone know if there is anything else that can cause this behavior. the fuel cut-off solenoid perhaps? Any other parts or systems to check? I even have a spare carb I can rebuild and install, but the old one was working fine before the engine swap.

I really need to get this car running reliably.

Thanks for any help.