Engine nurzle not responding

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MEMBER
1999 DODGE CARAVAN
3.3L
6 CYL
2WD
AUTOMATIC
200,000 MILES

1st fuel norzule not working! Tested when remove the plug responding at all, we ve because of that replaced the 2 cylinder, change flywheel, nurzle tested independently working but when plugged not responding to engine performance!
can a weak crankshaft sensor or ignition coil responsible for this?

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

A weak crank signal would not cause this. We need to start with checking for codes as if you have an injector that is not firing then I suspect we have codes that will point us in the correct direction.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

This could be a control module or a wiring issue but did you test the injector as shown in the guide below?

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Let's start with checking for codes and we can go from there. Thanks

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Tuesday, December 29th, 2020 AT 3:56 PM

OLUDARE

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2 POSTS

My mechanic has just scanned the car now, these are the results:

Injector circuit open - cylinder 1

Leak detect pump solenoid circuit

02 censor circuit - no activity detected - bank 1 sensor 2

Manifold absolute pressure/ barometric pressure circuit: high

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Thursday, December 31st, 2020 AT 1:53 AM

KASEKENNY

MECHANIC
18,907 POSTS

Sounds like we have some wiring issues assuming all these are related. However, did they give you the actual codes so I can look them up? Unfortunately they don't list the codes by description. Thanks

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Thursday, December 31st, 2020 AT 6:49 PM