Wont start!! AGAIN!!!!

Hi all,

Well I've done it again!!! - Succeeded in transforming my perfectly working car into one that wont start by getting something wet after giving the car a serious hosing to remove any beach sand collected whilst on holiday.

What is susceptible to water on a Mk2 (AGG)?? - It just will not spark even though the Coil, Dizzy, Leads have all been kept dry. Could it be the ECU in the scuttle area getting wet!!

Any pointers!!???

Cheers

DC

As everything still appears dry (Inc. the ECU) I was thinking of doing the following:

1. Diagnosis of ECU.
2. Replace Dizzy Cap/Rotar Arm
3. Replace HT Leads
4. Replace Coil

Anything else to check/replace?

I tried starting it at the weekend - it fired just and then went Paahhh!!! - lumpy!

How much on average should I expect to pay for someone to come and diagnose the problem?

Went out and tried starting it tonight and it started first time and settled down to a normal idle!. I let it warm up then took it for a drive up the street and back which was fine through first but when in second it became very stuttery and hesitant. When stationary if you applied the revs smoothly it was fine but blipping the throttle cuased it to stutter, cough and judder and at one point die. I was able to start it again but only by playing with the throttle which again was very lumpy with some unreasuring noises.

I dont feel right starting again so I've left it and also disconected the battery!

I'am getteing really fed up with it now!

I'd be very gratefull for your opinions!

DC

m0rk said:

Have you done this? Changed the parts?

You shouldn't need to change the dizzy - jus the cap

Click to expand...

1. Diagnosis of ECU. - NO
2. Replace Dizzy Cap/Rotar Arm - About 4 months ago
3. Replace HT Leads - NO
4. Replace Coil - Tommorow

From cold the car started last night - though not easilly and quite lumpy! It settled down to an Idle at about 8-900rpm and I let it warm to 75oC. I got back in and started to push the accelerator and it just died. After a couple of minutes I started again with less trouble than the first time and again settled to an idle. At idle if you blipped the throttle there seamed to be stuttering/missing until past 1000rpm. I then turned it of and started it again acouple of times whilst warm and again this morning it also started from cold!.

The day before I took it on a short drive of about 10 mins averaging about 40 mph but if you put it under load there always seamed to be a stutter judder present. After about 10mins I found it difficult to stop it from stalling at low revs which got worse until it died at which point I could'nt start it and had to tow it home!!


Cheers

DC

Hi all,

Before I took it to get a diagnostics of the ECU I thought I'd try a few things:

Went round the whole engine bay removing/replacing multi-plugs, replaced the air flow meter unit with a new spare I had and cleaned the throttle body with a spray. I also removed the airbox, exmined all the pipes around this area and the filter.

Started it up and all seemed fine so I let it idle and warm up with no repeat of the previous symptoms! The next day the 15min journey to the Garage to interigate the ECU was uneventful - though I was making shure not to put it under to much load!.

The ECU diagnosis threw up 4 fault codes from the error memory:

020B Intake-air temperature sensor - open circuit/short
error sporadic

0208 Air-flow sensor - open circuit/short
error sporadic

0498 Key - At present no test possible
error sporadic

0499 Engine Control Unit - At present no tests possible
error sporadic

After this I drove the car around visiting parts suppliers and again no trouble! On a stretch of dual carrigway I opened it up through all gears and no obvious problems!
I was thinking I might change the air temperature sensor an see how it goes for a while - what do you think?

Cheers for your replies!

DC