Head is hurting from a Pd150 swap.

Ok so quick once over. I'm at the near end of my brain with this swap.

2003 gas 2.0 wagon with a pd150 in. Customer brings it in because of no boost. It runs, it drives, just no boost. 100% limp mode all the time. While looking through all wiring, trying a few combinations, it still runs and drives just not boost.

I take the battery out to test some wires. 2 weeks later I get back to the car. Put the battery back in and...... crank no start.

Check fuses, all good. Check timing, good. Check crank sensor, acting funny so replaced, still no start
Cam sensor test good. Lift pump good. Tandem pump seemed a little low on pressure when cranking so swapped a good known one on. Still crank no start. Also, have tried a few different ecu's.

So I guess I'll start with this question? Is there something I am missing from staring at this thing to long.

Thanks if anyone can help. Starting again on in soon.

Make sure the big round connector is plugged into side of head. Any faults? Check for gas in tank? Pull fuel hose you might be surprised. Customer brought me a car with gas in it. Drove 20 min after putting gas in it. Left it cus it was running bad. Next no start. Messed with everything, another ecu etc. cracked a feel line and surprise. Benzine !

Big round connector is hooked up, injector harness checked as well and all looked good. Fuel in tank is fine. I ran about a quart out in to a container to test the lift pump. It's all diesel also.

Did you scan for current codes?
Do all the dash lights come on?
I assume 'Lift pump good' means you hear it running or did you take the feed line off after the filter and get -fuel- not -gas- ?

You posted as I was typing.

Current codes are the same as it had when it came in. Showing a short to ground for the n75, n18 and intake flap (which is deleted). Reasons for the no boost issue before this crank no start had started.

Check fuse 34, 10 amp.
Use an ohm meter.
If the fuse is bad check for the short listed.
While it's out with the key on test there's power in the fuse box where the fuse plugs in.
If not check relay 109.

Wonneber it's a 2.0 gas to p150 swap. So some of the curcits are different than a stock pd150. But all fuses and relays checker out good.

Kraiger said:

Wonneber it's a 2.0 gas to p150 swap. So some of the curcits are different than a stock pd150. But all fuses and relays checker out good.

Click to expand...

I'm assuming its the 2.0 gas fuse box.
Either engine use the fuse as far as I can tell, Bentley lists it as 'Engine Control Elements'. It does not distinguish 2 separate fuses or relays for power.
It also provides power to relay 109 which is the power for the ECU and such.
Is there a relay 109 there?

Now that I thought about it a few minutes, for that major swap did they swap the power harness as well?
PD150 is newer so my pointer could be wrong.
My Bentley covers 99 to 05 which is PD

Immobilizer? touch pos and neg cables(off battery of course) together reset computer?

The pd150 came from an 04 bora. Uses a edc15+ ecu. And immo is off.

Is the tach registering when you crank?

109 relay still should be held suspect.

No. and there is not 109 at this time do to being a 2.0 gas swap. My 00 alh car does not show rpm when I crank either.

Hm... I'd read that this tended to indicate an issue with the CPS

Uhoh I wish. tested good. Swapped with known good one also and still no dice. Cam sensor also.

UhOh said:

Hm... I'd read that this tended to indicate an issue with the CPS

Click to expand...

I don't think I get RPM cranking either.
Can the sensor be checked with a scope?
Does VCDS get the RPMs from it?

A simple resistance check can be done to prove out the senser. Double checked all fuses and relays today. Still nothing found. It almost points to a bad ecu, but I have 3 here and all do the same thing.

And no you can not use vcds while cranking.