No start after engine swap
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Joined: Jun 2016
Posts: 110
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Car: 1991 camaro z28
Engine: SBC 355
Transmission: 700R4
Axle/Gears: 3.73
Re: No start after engine swap
Bad news again.... So yesterday the car was running great I even took it to the store and it drove perfectly fine and today I get home to start it up and it does for 2 mins and shuts off again and now it won't start so I took out the plugs and they are fouled again with the smell of gas. If I were to use the stock chip and run it like that would it still foul the plugs while I wait for a moates cord to come in to datalog it?
Joined: Dec 2004
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: No start after engine swap
I think your stuck installing a new set of plugs.
If you install the 305 tune with 350 injectors it might run even richer than with your 350 tune.
Best to replace the plugs wait to get the xtreme aldl and datalog starting with closed loop idle if you can enter into closed loop. A wideband would be the best for tuning. Or if you don’t want to mess with chips look at dynamic efi ebl p4.
If you install the 305 tune with 350 injectors it might run even richer than with your 350 tune.
Best to replace the plugs wait to get the xtreme aldl and datalog starting with closed loop idle if you can enter into closed loop. A wideband would be the best for tuning. Or if you don’t want to mess with chips look at dynamic efi ebl p4.
Thread Starter
Member
Joined: Jun 2016
Posts: 110
Likes: 0
Car: 1991 camaro z28
Engine: SBC 355
Transmission: 700R4
Axle/Gears: 3.73
Re: No start after engine swap
What would happen if I installed the 305 chip with 19 # injectors? Or the 350 chip with the 19# injectors?
Thread Starter
Member
Joined: Jun 2016
Posts: 110
Likes: 0
Car: 1991 camaro z28
Engine: SBC 355
Transmission: 700R4
Axle/Gears: 3.73
Re: No start after engine swap
Well I took out the old 02 sensor and it's very very black and Its also shaking on the inside so I'm 99% sure it's bad. Could this been the problem of the engine running rich the whole time?
Thread Starter
Member
Joined: Jun 2016
Posts: 110
Likes: 0
Car: 1991 camaro z28
Engine: SBC 355
Transmission: 700R4
Axle/Gears: 3.73
Re: No start after engine swap
So yesterday I decided to put the stock chip and injectors in to see how it would run and if it would still run rich like before and I checked the plugs and they were starting to become fouled again.... That lead me to replace the O2 sensor whitch was bad. Do you think this could of been the problem all along with fouling the problem since it wasnt the chip or injectors. If I were to installing the 22# pound and custom chip do you think i could drive it?
Thread Starter
Member
Joined: Jun 2016
Posts: 110
Likes: 0
Car: 1991 camaro z28
Engine: SBC 355
Transmission: 700R4
Axle/Gears: 3.73
Re: No start after engine swap
Finally solved the problem it turned out that the 02 sensor was causing the very rich condition. Motor is running excellent now and I've checked the plugs and they are burning just right !
Thanks to everyone for the help.
Thanks to everyone for the help.
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