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34 Posts
I followed the instructions for changing the spark plugs on the 2.7 V6 that are posted on the hyundaimods site. All seemed to go well apart from it being **** tight between the engine and the firewall and very fiddly getting the bolts out and back in.
On starting the car it backfires through the throttle body and runs rough and dies. It seems to me that it is not getting enough fuel. I have triple checked that all electrical connectors and vacuum hoses are back where they came from.
I can only think that perhaps a wire may have been broken to a sensor or solenoid but pinpointing where exactly the problem is is difficult.
I read a topic on the sonata forum where someone had similar symptoms after rebuilding their heads on their 2.7 V6 and eventually worked out that he had the connectors to the throttle body reversed.
I only had 2 of the 3 connector plugs disconnected and they can't be reversed, they only fit one way.
All the plug leads where disconnected one at a time and only one had to be disconnected from the 'distributor' so they are all back in the right order.
Can anyone offer any help or solutions?
Cheers Bruce
On starting the car it backfires through the throttle body and runs rough and dies. It seems to me that it is not getting enough fuel. I have triple checked that all electrical connectors and vacuum hoses are back where they came from.
I can only think that perhaps a wire may have been broken to a sensor or solenoid but pinpointing where exactly the problem is is difficult.
I read a topic on the sonata forum where someone had similar symptoms after rebuilding their heads on their 2.7 V6 and eventually worked out that he had the connectors to the throttle body reversed.
I only had 2 of the 3 connector plugs disconnected and they can't be reversed, they only fit one way.
All the plug leads where disconnected one at a time and only one had to be disconnected from the 'distributor' so they are all back in the right order.
Can anyone offer any help or solutions?
Cheers Bruce