1987 Porsche 944 throttle issue | The Car Community | Page 1

manic ember Apr 2, 2023, 7:44 PM

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I recently got my 944 back on the road but the throttle doesnt feel right. The response is poor and pressing the accelerator pedal more doesnt make the car go faster. Thinking it might be a sensor? If anyone has any idea please let me know

next scaffold Apr 2, 2023, 9:41 PM

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Have you checked the fuel filter? It could be dirty and clogged up a bit, causing less fuel to reach the engines

Also check the fuel pump

manic ember Apr 2, 2023, 9:45 PM

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Fuel pump is new

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Havent checked filter yet

next scaffold Apr 2, 2023, 9:48 PM

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manic ember Fuel pump is new

Does your car have poor idle?

manic ember Apr 2, 2023, 9:48 PM

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Yes

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Already tested injectors and they work fine

next scaffold Apr 2, 2023, 9:49 PM

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Might be throttle body issue

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Is the throttle body mechanical or electronic in your car? Ik older cars have wires for the throttle body

manic ember Apr 2, 2023, 9:50 PM

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It has a throttle cable

next scaffold Apr 2, 2023, 9:50 PM

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manic ember It has a throttle cable

Is it in any form clogged?

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Or some dirt inside

next beaconBOT Apr 2, 2023, 9:51 PM

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GG @next scaffold, you just advanced to level 1! Chat more to level up and earn top roles!

manic ember Apr 2, 2023, 9:51 PM

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Nope, took it off and retightened it

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There could be junk inside of it

next scaffold Apr 2, 2023, 9:52 PM

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Is air filer new?

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I think it should be as you went to check the injectors

manic ember Apr 2, 2023, 9:52 PM

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Havent checked the air filter actually

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Meant to but didnt have a long enough screwdriver

next scaffold Apr 2, 2023, 9:54 PM

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Also check the PCV valves, might be blocked and check are there any vacuum leaks

manic ember Apr 2, 2023, 9:54 PM

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Most of the vacuum lines are new, not sure where he pcv valves are

next scaffold Apr 2, 2023, 9:55 PM

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Other than that maybe there are like oxygen sensors and a bunch sensors I don’t know the name of.

next scaffold Apr 2, 2023, 9:55 PM

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manic ember Most of the vacuum lines are new, not sure where he pcv valves are

Did you get new injectors or you got them cleaned?

manic ember Apr 2, 2023, 9:56 PM

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Drove it around in an attempt to clean them

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I think it worked

next scaffold Apr 2, 2023, 9:56 PM

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manic ember Drove it around in an attempt to clean them

You might need to visit some kind of shop to get them professionally cleaned

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Or buy new ones

manic ember Apr 2, 2023, 9:57 PM

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Any ideas on how much that would cost to get them cleaned?

next scaffold Apr 2, 2023, 9:58 PM

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I have no idea

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I’ll do a google search

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https://www.pistonudos.com/en/cleaning-diesel-petrol-injectors-when-to-do-it-and-how-much-it-costs

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Plus is there a chance that it has low compression? Don’t know does it have to do with this but it’s an old car, and that might be a slight issue

manic ember Apr 2, 2023, 10:01 PM

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Compression is ok I think, starts easy

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Ive driven it and it feels fine above 3k rpm

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Just feels like pressing on the gas pedal doesnt really do anything

next scaffold Apr 2, 2023, 10:03 PM

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Can you just get a mechanic to check things over for you? There are numerous causes for this issue I think

manic ember Apr 2, 2023, 10:03 PM

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Id rather not as that costs money

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Trying to not spend money if I can help it

#1987 Porsche 944 throttle issue