New engine, way too much fuel on cold start.

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Popeye92
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New engine, way too much fuel on cold start.

Post by Popeye92 » Wed Aug 08, 2018 3:09 pm

Hi guys, i am really stumped for ideas and nothing seems to help.

Basic info:
My car: ford Probe 1995 24v
Parts car: ford Probe 1996 24V
codes pulled: Rear O2 sensor and Crankshaft positioning sensor.

about 6 months ago my engine totaled and i put in a spare engine block from a parts car.
Before the swap the car started easy all the time. but after the swap it drowns in fuel on startup. For it not to stall i need to have the accelerator to the max until the engine is warm. After the engine warms up i can restart the engine and it starts and runs fine.
I know its getting to much fuel based on emission test at a garage.

About the parts engine:
Had been standing for some years before swap, did not start when i got it either(code said it was crankshaft position sensor)

I have tried all that i can think of :
IAC swapped and cleaned
IAT Swapped
Tried to go over all vacuum lines
Swapped o2 sensors
Swapped Crankshaft positioning sensor
Swapped intake manifold with injectors
Tested cables to above
Tested EGR( dont know how to verify if it works correctly)

Nothing seems to change anything.

Is there anything you can recommend? any tips? i am out of ideas

Any information i missed please ask i will answer to the best of my knowledge :D

Btw: sorry for any bad English since it`s not my native language(i`m Norwegian).

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Incognito
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Re: New engine, way too much fuel on cold start.

Post by Incognito » Wed Aug 08, 2018 4:43 pm

I'm no tech, but possibly your car is an early gen 2 and your parts car is a late gen 2 as they crossed over in 1995. And welcome to UKPOC.
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Popeye92
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Drives: Probe 24v 2,5L

Re: New engine, way too much fuel on cold start.

Post by Popeye92 » Wed Aug 08, 2018 4:48 pm

thanks! yes my car is obd 1 and the engine is obd2 but the only thing i used was the block. and i cant see why that would be different

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EL PLATES
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Re: New engine, way too much fuel on cold start.

Post by EL PLATES » Wed Aug 08, 2018 6:19 pm

not a techie but all ford probe gen 2's are obd1????? 1993 - 1997 arnt they?

but there are differences between the early and the lates,

not sure if the temic / non temic would make a difference,

but the distributers could be different

and the ecu box????

hope i havent confused the issue.

have you got the old engine / car still....

to compare parts.....


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cpt black
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Re: New engine, way too much fuel on cold start.

Post by cpt black » Wed Aug 08, 2018 8:32 pm

Did you Play around with the injector rails as the banjo bolts have different holes
in them

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ICKLE
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Re: New engine, way too much fuel on cold start.

Post by ICKLE » Wed Aug 08, 2018 8:43 pm

Yep they do and I speak from experience lol
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mikenali
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Re: New engine, way too much fuel on cold start.

Post by mikenali » Thu Aug 09, 2018 9:45 am

Have you tried swapping the fuel pressure regulator, and the fuel pressure regulator solenoid?
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Popeye92
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Drives: Probe 24v 2,5L

Re: New engine, way too much fuel on cold start.

Post by Popeye92 » Thu Aug 09, 2018 2:07 pm

Thanks for all the replies :D
After all the troubles i had i swapped back as much as i could think of.
So now i have the "old" intake manifold with all parts connected to it, including injection.
ECU was never changed.
all that i can think of that is changed is the engine block and all components on it( like exhaust manifold)
hope this is understandable :?

Popeye92
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Posts: 4
Joined: Tue Aug 07, 2018 9:24 pm
Drives: Probe 24v 2,5L

Re: New engine, way too much fuel on cold start.

Post by Popeye92 » Thu Aug 09, 2018 5:03 pm

Ill have to check the banjo bolt doesnt know which engine its from. Have swapped fuel regulator and solenoid thou

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