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volvo 240 turns over, but does not start :(

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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sojoman
Posts: 1
Joined: 10 August 2009
Year and Model: 1983 Volvo 242
Location: CA, USA

volvo 240 turns over, but does not start :(

Post by sojoman »

Hello,

My 83 volvo 240 is at a friend's shop now after it turns over, but refuses to start. I've just replaced the wiring harness, checked for fuel and spark (ok), checked the fuse box, timing is ok, and am running out of ideas for the car.

My friend thinks we should change the ecu, b/c after the harness was removed the car backfires a little bit vs before it didn't. On ebay, there's two types: 0280000503 or 0280000510. The engine is the original b23f, lh2.0 system. Which one should I get? Or any other ideas? Thanks for the help.

Solomon

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billofdurham
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Year and Model: 855, 1995
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Post by billofdurham »

Welcome to Matthew's Volvo Site.

The correct ECU for your car is the 0280000510.

You seem to have covered everything else on the check list although you don't mention a check of all the earth (ground) leads.

Bill.
Work was good - retirement is better.

1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.

FCPEURO
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Post by FCPEURO »

It could also be the crank position sensor or a burned out MAF.

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