FIXED] 05 HYUNDAI SANTA FE 2.7L P0300 P0301 P0303 P0305

God bless you my brothers and sisters.
I got this Santa Fe 2.7L with misfire codes all of bank one. Customer said his camshaft broke and he replaced it himself and he did not know if timing was correct. He wanted me too check if his timing marks were correct when doing this i notice his cam caps weren't tight. The number 1 and the number 4 on the exhaust side, caps were moving up and down as the lobes pushed on them. I told the customer about this he said fix it. Now this is fixed and i start the car and it's missing just like when it came in same codes i check for spark i do have spark. I check injectors for power and control and fine that only the number 5 injector is working. I do some checks from injector to ecm i don't have noid light so i used a test light and i got batt. voltage at ecm. At this point i was going to call a bad ecm but just for kicks i check for pulse and i have injector pulse on all injectors. What should i check next so i don't keep going in circles.
I was looking at some of brother Danners videos and he said that some car will shut the drivers off too protect the cat maybe that was the reson i had no pluse the first time i check. THANK YOU FOR YOUR HELP.

so only cylinder 5 has injector control? maybe try clearing codes and installing a noid light see if you have control for a minute.. thats the no scope way. but a 2005 is probably to old intentional shut down

God bless you my brother's and sister's.
Cheryl thank you for your quick response, at first I only had injector control on cylinder 5 now I have it on all 3 injectors.
I'm thinking maybe wrong camshaft or not enough valve clearance. I'm going to check on that tomorrow, also checking compression.

Have you had the opportunity to recheck timing after the cam caps got tightened? This would be my first thought given tha you've verified injector pulse.

Maybe a relative compression check would show three low-rise cylinders?

God bless you my brother's and sister's.
Tyler thank you for getting back at me and sorry for the late response. I did check the timing and it's good I also checked the compression and cylinder 1 & 3 only have 10 psi . Cylinder number 5 25 to 30 psi and they don't get better with oil. I could see that the number 1 bank head gasket has a marking with an L. I believe that the customer put the wrong head gasket but I don't know if that would be the cause of the low compression. Has anyone had this problem or can anyone tell me if this is the cause of the low compression thank you.

I'm not sure about the head gasket being reversed causing the low compression directly, but it does make me wonder about blocking an oil supply passage.

Since this thing is DOHC, I'm wondering if there's an individual camshaft timing issue, instead of a belt timing issue. I don't recall if this engine uses chains or helical gears, but an oiling issue could certainly cause a sprocket dowel pin to shear.

God bless you my brother's and sister's.
Hey Tyler thank you brother for taking the time to respond on a Sunday. Here are some pictures of the cams and they do have a chain. The timing marks are visible on the cams and they do look to be on the right spot.

God bless you my brothers and sisters.
Well like i said the owner put a left head gasket on the right head, he also put the cam from left on the right . Timing is all off the lobes don't match even though timing marks are on the right spot. Customer is on the hunt of the right camshaft now i will keep you posted thank you very much for your help.

gilbert wrote: God bless you my brothers and sisters.
Well like i said the owner put a left head gasket on the right head, he also put the cam from left on the right . Timing is all off the lobes don't match even though timing marks are on the right spot. Customer is on the hunt of the right camshaft now i will keep you posted thank you very much for your help.

You read my mind! :lol: This was gonna be my next suggestion - put a cylinder at TDC compression and see where the lobes end up. I actually had my money on a sheared keyway, but swapping the cams would do that, too. :silly:

God bless you you my brothers and sisters.
I put the correct cam and it runs fine thank God that the gasket had an L for left.

Nice. Great to hear, sir. No catastrophic damage, I'm guessing?

God bless you my brother's and sister's.
I thought there would be some damage because when the wrong camshaft was in and the car on I did hear the engine knock. I told the customer that there might be engine damage I recommend that I take off the oil pan to see if I can see anything. Like metal shaving or lose rod's, what I did fine was a bolt in there. Customer must of dropped it when he was working on it.
Thank you all for your help.