Same old story peeps...Zed wont start :mad:

Have trawled through 500 threads this morning since 6am and have loadsa ideas to try thanks to the excellent database.

 

Would appreciate any further ideas or extra tips if you can think of any please.

 

PROBLEM:

 

last used Zed on friday afternoon and has been running superbly for 4 months since ive had it.

Started it sunday afternoon (was gona goto town init but used wifes car instead...wont go into that now..space issues..lol)

Anyhow..it started and i then switched it off within a minute.

Try to start it this morning at 5:30 and it was a no go.

 

INFO:

 

series 1 PTU :rolleyes: :xxx:

Used to start within 1 secound

Full Battery power.

Starter cranks engine but doesnt even hint at starting.

Fuel pump primes as normal.

It has been raining most of the night but have never had any leaks in engine bay and it was bone dry when i lifted the bonnet.

I have never experinced any problems with the MAF in the rain due to the Apexi fitted and was last used in the dry anyway so no chance of the water getting in.so am doubting this fault.

Have wiggled all connectors but it is lashing it down this morning so am unable to remove and clean connectors at the mo through as i dont want water getting in every where and making it worse.

I am waiting till my misses wakes up to tell me if she can smell fuel or not when i crank the car.

My left o2 sensor is not very good but has been cack for a while now and never had any probs.

 

AREAS TO CHECK:-

 

#1)Connections corroded

#2)ecu error codes

#3)coil packs

#4)MAF

#5)PTU series 1=code 21, i.e. a PTU failure

#6)Spark plugs or any spark

#7)CAS connector (crank angle sensor) (code11) If the CAS was faulty the ECU would keep cutting the fuel pump when it wasn't getting a signal.

= remove the coilpack connectors and check for water down there.fault readings and if it's come up with crank sensor=the connection on the CAS

#8)Conzult

 

#Question 1)Will my ConZult tell me if the PTU is fooked?

Apparently a code 21 is the result but is this for definate or is it just saying there is no connection or a electrical fault somewhere?

 

#Question2)Will the ConZult tell me anything at all if the car wont start?

 

From all i have read this problem seems as if it is either Dodgy connections or a fooked PTU the later being the most likely as what connectors have been apart were spotlesly clean.

obviously im gonna check for sparks and fuel first :rolleyes:

 

As soon as it stops lashing it down im off outside for the day tinkering and fiddling

 

(with the car...come on chaps :rolleyes: not like that)

 

Any suggestions or other tips much appreciated as im feeling sorry for myself :cry:

 

ThankZ

Only time I've ever had a non starter was when the ECU connector was slightly lose. Just pushed the blue connector in firmly and tightened the securing bolt slightly. May be worth a quick check just to make sure...

 

Steve :)

 

Ah yes - the other time was when my series 1 PTU failed :slap:

 

Steve :)

ello :cool:

 

The connector under the footwell?...is that the blue one?

I will try it now...ta

 

lol - that's the fella!

The cylinders could be flooded, take the fuel pump fuse out turn it over a few times.

 

Have you actually swapped the ptu for a known good one yet?

If it is the PTU I have a series 2 for sale.

The cylinders could be flooded, take the fuel pump fuse out turn it over a few times.

 

Have you actually swapped the ptu for a known good one yet?

 

hi...

 

:cry: no...i havnt got a spare :cry:

 

is there anyway i can be sure its the PTU?

 

Thankyou

Try taking out the fuel pump fuse like Mark said mate.

 

I have heard of this before and it worked. Also something about the water temp sensor being faulty and causing the ECU to overfuel because it thought the engine was colder than it was. :confused:

Only time I've ever had a non starter was when the ECU connector was slightly lose. Just pushed the blue connector in firmly and tightened the securing bolt slightly. May be worth a quick check just to make sure...

 

Steve :)

 

tried that now and nothing there either..thanks anyway :cool:

 

Im gonna try n locate the fuse for the fuel pump now and see if that works like TopLess said.

The cylinders could be flooded, take the fuel pump fuse out turn it over a few times.

 

Have you actually swapped the ptu for a known good one yet?

 

:nana2: :dance: :dance: :dance: :nana2:

 

Lifesaver....

 

Removed it...spun it till it seemed to speed up a little bit....put fuse back in...

HeyPresto....

 

BBBBRRRRRMMMMMM BBBRRRRMMMMMM

 

So it was a flooded engine...

 

DOH :headvswal

 

How could this happen as you never have to push the throttle pedal to start anyway so how would it flood???

 

was it something to do with the fact i had started it for less than a minute the other day that caused the sensors to fookup?

 

or is it to do with the dodgy o2 sensor...would this be able to overfuel so quickly from starting?

 

is it something to do with what ChrisP said? :-

 

something about the water temp sensor being faulty and causing the ECU to overfuel because it thought the engine was colder than it was.

 

Any one know if this is a problem brewing?

 

I know i know...solved the problem and im still bugging you lot with questions...lol...Sorry peeps

 

anyway...Thanks to all who chipped in and helped (especially TopLess) ...much appreciation

 

:bow:

If it is the PTU I have a series 2 for sale.

 

You got pm mate ;)

Woohhoooo

 

well done mate, pleased for ya!

 

By the way, if it was flooded the spark plugs never really recover, the trace of petrol on them leaves tracking marks for them to ground to earth after, it might be advisable to get a new set!

 

I also think the temp sender unit deteriorates gradually over the course of time, I think it can be advisable to get a new one, it is one of the most important sensors on the car.