Peugeot - 03 2.0 hdi flat spot

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Wed 26 Nov 2008 21:56
03 2.0 hdi flat spot - gingerdog
hello had my 307 hdi 90 for about 2 months been great car but to day i noticed when setting of and going through gears as i go to accelerate there is a flat spot 1-2 seconds then picks up when driving along great no problem car is well serviced and been using millers diesel additive any ideas

Edited by Dynamic Dave on 27/11/2008 at 00:42

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Wed 26 Nov 2008 23:54
03 2.0 307 hdi flat spot - Screwloose

Precious little to go on. Maybe an injector or MAF fault...?
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Thu 27 Nov 2008 10:35
03 2.0 307 hdi flat spot - gingerdog
cheers for relpy will run car today see if i can post bit more info it has been a little hard to start in a morning sometimes and i dont hear the tank pump prime up would this be right with this model as we have an 05 206 2.0 hdi and when you start that you can here the pump prime up
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Thu 27 Nov 2008 14:06
03 2.0 307 hdi flat spot - Screwloose

There are two suppliers of fuelling for the HDis; Bosch and Siemens.

Bosch normally use an in-tank pump; Siemens don't. [Although there may well be a functioning pump relay, pump fuse and live wiring actually entering the tank....]

So, if it never runs the tank pump, that may be normal. If, however, it normally does run the pump for a few seconds at key-on - but doesn't when it won't start; then that is significant.
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Thu 27 Nov 2008 18:55
03 2.0 307 hdi flat spot - gingerdog
had it pluged up today at my mates garage and came up with maf fault so you could be right going to try new one hope this sorts it out thanks for your replys and i will put post on if it works
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Thu 27 Nov 2008 19:23
03 2.0 307 hdi flat spot - Screwloose

What code number did it have stored and could the scan-tool read both EOBD codes and PSA-specific codes?
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Fri 28 Nov 2008 21:42
03 2.0 307 hdi flat spot - gingerdog
did not get the code it just said mass air flow fault it was a ethos scanner that read it
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