Ok i had zzp cams installed by zzp and tuned to full e85. After around 200-300 miles i got a p0016 and p0091 code. I thought maybe it was my high pressure fuel pump replaced it and everything worked again. Well 25 miles later im getting the p0091 and p0016 code and getting reduced engine power. Im wondering if maybe its not the pump thats messed up and maybe something to do with the crank position sensor. Im thinking due to our high pressure fuel pump is driven by the cams and if the crank position sensor is thrown off it would cause the cams to not work correctly and throw the car into limp mode and in turn the pump would not work correctly. Can anyone help me out and how to maybe fix the crank position sensor if its in wrong or anything of that nature.

 

I recently did a Crank Position Sensor on my car. There's not much to it.

- Disconnect the battery and give the system some time to discharge
- Jack up the front of the car
- Disconnect the electrical connections to the starter and remove the starter
- The Crank Position Sensor is right behind the area where the starter covers. Just disconnect the wires going to it, take out the old one, pop the new one in, and click the wires back together.
- Reverse all the rest of the steps

The Crank Position Sensor (as are the cam position sensors) are just simple inductive (electromagnetic) sensors.

 

Shoot, I hope I don't get these problems next month!

 

Its not that bad

 

knock on wood... so far no such problem yet with over 18K miles..

 

I'm at 36k miles in the cams and valve springs only problem I've had was a stretched timing chain.

 

Nice, keep em coming.

 

I am thinking this for my P0336 and P0338 codes but i replaced the sensor and still the same i have a brand new hpfp but only getting 83psi at the rail. how many functions does the crank sensor influence?

 

i took my hpfp off and then unloomed the wire for it wrapped the whole thing in electric tape then put the loom back on and my fuel pump works fine now..but im still getting the code gotta remove my valve cover this week check timiing from there

 

Any updates on this issue?

 

I would imagine the timing chain was not installed correctly setting the --16 code? imagining...

 

I'm getting the same code. ZZP built the motor for PO. He only run the car 2 months and started having a problem. He changed all kinds of sensors and had no luck so he traded the car off. I have it narrowed down to a few different possible causes. I think there is either oil blockage, may have stretched timing chain and jump time or maybe the cam actuators. We run a quick log on the car and the intake cam never moved off 0 and exhaust only moves from 0 to 0.2.

 

a friend of mine his hhr had the same problem it was due to the phasers being full of metal

 

Well I have spoken with the PO of the car and he has changed all external sensors. Gunna pull cam phasers this weekend and check them out and maybe borrow the ones from the wife's balt and try them on mine. Also gunna check out timing chain and make sure it hasn't jump a tooth somewhere.

 

if the cam timing chain is installed without the vvt tool its possible not to get the chain on correctly the car starts and runs fine except not perfect performance and the cel comes on.
Some things:
ZZP do fine work I cant imagine the put the chain is on wrong,but anything is possible.
timing chains dont stretch. anything is possible
timing chains dont jump teeth unless the motor is broken. anything is possible.



SO MY take:

if the acutators wont park its the timing not correct. I have detailed the process somewhere on this site, but the bottom line is "follow the service manual and use the tool" SO the OEM process,

If followed, it goes like this. line all the sprockets up per the book with the crank gear white dimple at 5 o clock, and install the vvt holding tool; as the chain us installed, first onto the inlet sprocket, then the crank sprocket and then as you install the chain into the exhaust sprocket the crank sprocket rotates clockwise. It must, the cam sprockets are locked in place.

If the tool is NOT used, and the installer tries to maintain the crank sprocket at its start position of " 5 oclock at the white dimple, keyway at 12 o'clock" as the chain is installed, the chain will be out one tooth in time and the cam actuator codes will set as the VVT cant park.

Thats what I know/ what may be happening could be different and debris on the acutators like Mr B says is an issue. But you can swap the acutators out until you turn blue , if the chain is not installed right all bets are off.

 

PS the ZZP cams I got were machined perfectly, I had to do nothing special, ZZP made sure they were perfect.

of course comp cams make them. sometimes not perfectly lol

 

minus the fact zzp doesn't make them... comp cams does private labeled for zzp.

to me it sounds the motors out of time but a tooth. things happen. not blaming zzp but anythings possible.

 

John do you mind posting the link to the instructions here? I'm doing my motor soon and will need to time it, my hayes manual only has timing procedure for fixed cam engines

 

Noor go on ebay and buy the vvt tool. 25 bux or so. then lock the VVT cams in place and follow the instructions I have posted. I left out the tensioner guides, its got to be self evident that they are in place, and its also self evident that Mr B's upgraded guide hardware is essential. In the meantime its easy email me I can maybe scan the service manual pages for you and email them to you. Its 150 for all the books from CED I have no clue why people dont buy the OEM manuals if they want to work on their cars.

PS sucks to be you! This is a link, THIS is the tool but the price at 135 is TOTALLY RETARDED
http://www.ebay.com/itm/KENT-MOORE-TOOL-EN-48953-ECOTEC-ENGINE-CAM-PHASE-RETAINER-WITH-BOLTS-/300977271038?pt=Motors_Automotive_Tools&hash=item4613a4b0fe&vxp=mtr

 

Well I would like to say the its gunna b acuators or oil blockage bc the PO ran the car 2 months before the issue started. Surely if it was timing chain or out of time it would have been caught at zzp shop. They built the motor did the install and tune it before he got it back. I am not sure if its been over revved or abruptly downshifted and caused a over rev. Car just doesnt run worth a crap as it sits right now and just digging all the info I can wrap my head around.

 

Holy ****....that tool is used too!!! That guy is nucking futs!!!