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Rough idle for Santa fe 2007 2.7l ... Car checked by OBDII…

Customer Question
rough idle for Santa fe...
rough idle for Santa fe 2007 2.7l ... Car checked by OBDII Scanner , Weak firing on Cyl#1,2
Submitted: 4 months ago.Category: Hyundai
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Answered in 4 minutes by:
12/11/2017
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago
David Craig
David Craig, Auto Mechanic
Category: Hyundai
Satisfied Customers: 5,177
Experience: Owner/Mechanic at 3D Automotive
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Hi my name is ***** ***** I'll be more than happy to assist you, Please allow me a few minutes to review your information. Thank you.

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Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

are you getting P0301 and P0302?

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Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

are you there?

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Customer reply replied 4 months ago
Hello Sir...
I am getting these codes only at idle .
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

ok, standby

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Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

do a fuel pressure leak down test

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Customer reply replied 4 months ago
How can i do it?
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

do a fuel pressure test. then shut everything off and see how long it takes the pressure to bleed down

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Customer reply replied 4 months ago
I do not have pressure tester , but i will let u know what i have done on my car
All basic troubleshooting tips have been done :
1- All injectors and Ignition coils have been replaced with working one .
2- Compression test done on Cyl#2 , reads about 11 bar.
3- Fuel pump replaced with new original one 3.5 bar.
4-Both OCVs have been replaced .
5-Ignition timing advance on on data stream reads from 3.5 to 13.5 .
6- Ignition error on Cyl# ***** rachs 70 on data stream . but when u increase the gas the error disappear .
Customer reply replied 4 months ago
i can smell the fuel from the exhaust
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

then you definitely have to do a pressure leak down test. you have unburnt fuel coming out of the exhaust

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Customer reply replied 4 months ago
Sorry David , Where do you expect the leak to be?
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

you already replaced the pump module correct?

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Customer reply replied 4 months ago
Only the fuel sender , (pump)
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

the regulator is part of the pump module or did you only replace the pump part?

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Customer reply replied 4 months ago
Only the pump part has been replaced
Customer reply replied 4 months ago
When there is a smell of fuel at exhaust , that mean our system is Rich , right ?
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

correct.

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Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

only a couple of things can cause that. weak spark, leaky injectors, bad fuel pressure regulator

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Customer reply replied 4 months ago
Could you please provide me part number of the regulator?
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

it is not a serviceable part. the entire module has to be replaced

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Customer reply replied 4 months ago
Could you please let me know how does it work?
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

how what works the regulator?

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Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

its supposed to keep the fuel pressure between 54.3-55.8 psi

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Customer reply replied 4 months ago
Ok, i will try to get one , and i will let you updated . Thanks for today
Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

you are very welcome and please note customer satisfaction is my number one goal and leaving 3 stars or more rating for me will allow us to continue this dialogue until you are completely satisfied.and your vehicle is fixed. you may ask as many questions as you'd like at no extra charges. thank you have a great day

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Hyundai Mechanic: David Craig, Auto Mechanic replied 4 months ago

hows it going? were you able to find anything out?

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